Ole Gunnar Dahlhaug

Om

Jeg er maskin ingeniør og er interessert i teknologi knyttet til fornybar energi. Vannturbiner er fasinerende og med jobben som professor på Vannkraftlaboratoriet hos NTNU har jeg gode muligheter til å jobbe med forskning knyttet til disse. Min bakgrunn som flymekanikker kommer godt med når man jobber med modeller i laboratoriet.

Jeg jobber også for Norsk Vannkraftsenter som er et nasjonalt samlende senter for å sikre og videreutvikle undervisning og forskning innen vannkraftteknologi. Her er det mange utfordringer som gir et godt grunnlag for å opprettholde et høyt teknologisk nivå på vår forskning og undervisning i fremtiden.I 2016 så ble NTNU vertskap for HydroCen som er en nyopprettet FME innen vannkraftteknologi, og her sitter jeg i ledergruppen.

Spesialområder:
• Mekanisk utstyr i vannkraftanlegg
• Virkningsgradsmåling av prototype pumper og turbiner
• Modelltester av pumper og turbiner
• Pumpe-/ Turbin-design
• Sanderosjon i turbiner
• Drift og vedlikehold av turbiner
• Design av vind- og tidevannsturbiner

Praksis:

1983 - 1986   Luftforsvaret, Ørlandet Flystasjon, Flymotortekniker
1992 - 1993   Forsker ved SINTEF Strømningsmaskiner
1997 - 1999   Forsker/gruppeleder ved SINTEF Energiforskning AS
1999 - 2003   1. Amanuensis ved institutt for termisk energi og vannkraft, NTNU
2003 - 2004   1. Amanuensis ved Kathmandu University
2003 - 2004   Forsker ved HydroLab på deltid, Kathmandu, Nepal
2004 - 2005   1. Amanuensis ved institutt for energi og prosessteknikk, NTNU
2005 - 2008   Professor ved institutt for energi og prosessteknikk, NTNU
2008 - 2010   Teknisk leder for ChapDrive as og DynaVec as
2010 - 2012   Professor ved institutt for energi og prosessteknikk, NTNU
2012 - 2013   Prosjekt ingeniør ved SN Power Peru i Lima.

2013 - 2022 Professor ved institutt for energi og prosessteknikk, NTNU

2014 - 2015 Leder for Norsk vannkraftsenter, NVKS

2016 - 2022 Medlem av ledergruppen til HydroCen

2019 - 2020 Leder for HydroCen

2020 - Leder for European Energy Research Alliance; EERA, Joint Program on Hydropower

2022 - Professor ved Kathmandu University, Nepal

Publikasjoner

2022

Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2022) Development of simplified model for prediction of sediment induced erosion in Francis turbine’s sidewall gaps. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (012016).
Vitenskapelig artikkel
Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2022) Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines. IOP Conference Series: Earth and Environmental Science (EES). volum 1079.
Vitenskapelig artikkel
Gautam, Saroj; Acharya, Nirmal; Chitrakar, Sailesh; Neopane, Hari Prasad; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Sediment erosion in the labyrinths of Francis turbine: A numerical study. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (01203).
Vitenskapelig artikkel
Gautam, Saroj; Acharya, Nirmal; Lama, Ram; Chitrakar, Sailesh; Neopane, Hari Prasad; Zhu, Baoshan; Dahlhaug, Ole Gunnar. (2022) Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal. Sustainable Energy Technologies and Assessments. volum 51.
Vitenskapelig artikkel
Gautam, Saroj; Chitrakar, Sailesh; Neopane, Hari Prasad; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2022) Numerical investigation of a Pelton turbine at several operating conditions. IOP Conference Series: Earth and Environmental Science (EES). volum 1037.
Vitenskapelig artikkel
Kverno, Johannes Opedal; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) High flexibility in Francis turbine operation and design philosophy: A review. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (1).
Vitenskapelig oversiktsartikkel/review
Lazarevikj, Marija; Stojkovski, Filip; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Parameter based tool for Francis turbine guide vanes design using coupled MATLAB-ANSYS approach. Journal of Sustainable Development of Energy, Water and Environment Systems. volum 10 (3).
Vitenskapelig artikkel

2021

Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2021) Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Energies. volum 14 (14).
Vitenskapelig artikkel
Acharya, Nirmal; Trivedi, Chirag; Gautam, Saroj; Dahlhaug, Ole Gunnar. (2021) Investigation of sediment erosion phenomenon for different blade angle distribution in Francis runner. IOP Conference Series: Earth and Environmental Science (EES). volum 174.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen.
Kronikk
Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen.
Kronikk
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Sigurdsson, Bjarki; Tengs, Erik Os. (2021) Modal testing of the Francis-99 runner. IOP Conference Series: Earth and Environmental Science (EES). volum 774 (1).
Vitenskapelig artikkel
Stojkovski, Filip; Lazarevikj, Marija; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2021) Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine. Energies. volum 14 (9).
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar; Lee, Young Ho; Zhongdong, Qian. (2021) Current research in hydraulic turbines against sediment erosion: International partnership and collaborations. IOP Conference Series: Earth and Environmental Science (EES). volum 627.
Vitenskapelig artikkel

2020

Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2020) The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine. International Journal of Fluid Machinery and Systems. volum 13 (2).
Vitenskapelig artikkel
Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2020) Review on numerical techniques applied in impulse hydro turbines. Renewable Energy. volum 159.
Vitenskapelig oversiktsartikkel/review
Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2020) Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Journal of Fluids Engineering - Trancactions of The ASME. volum 142 (10).
Vitenskapelig artikkel
Støren, Gine Kirkebøen; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2020) Signature Investigation of Typical Faults on Francis Turbines. Journal of Physics: Conference Series (JPCS). volum 1608.
Vitenskapelig artikkel
Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar. (2020) Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability. volum 10 (12).
Vitenskapelig artikkel
Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar; Zoran, Markov; Engstrom, Fredrik; Lysaker, Henning. (2020) Investigation of a Francis turbine during speed variation: Inception of cavitation. Renewable Energy. volum 166 (4).
Vitenskapelig artikkel
Volent, Eirik; Sagmo, Kristian Forfot; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2020) Experimental Study of Flow Structure in Converging–Diverging Axisymmetric Geometry. Journal of Fluids Engineering - Trancactions of The ASME. volum 142 (4).
Vitenskapelig artikkel

2019

Acharya, Nirmal; Trivedi, Chirag; Wahl, Nina Marie; Gautam, S; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Numerical study of sediment erosion in guide vanes of a high head Francis turbine. Journal of Physics: Conference Series (JPCS). volum 1266 (012004).
Vitenskapelig artikkel
Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery. volum 2019.
Vitenskapelig artikkel
Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) Onboard measurements of pressure pulsations in a high head Francis model runner. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (2).
Vitenskapelig artikkel
Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (6).
Vitenskapelig artikkel
Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Østby, Petter Thorvald Krogh; Dahlhaug, Ole Gunnar. (2019) Damping Measurements on a Multi-Blade Cascade with Multiple Degrees of Freedom: A Francis-99 Test Case. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) Development of a test rig for investigating the flow field around guide vanes of Francis turbines. Flow Measurement and Instrumentation. volum 70.
Vitenskapelig artikkel
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (7).
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240.
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable and Sustainable Energy Reviews. volum 103.
Vitenskapelig oversiktsartikkel/review
Neopane, Hari Prasad; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Role of Turbine Testing Lab for overcoming the challenges related to hydropower development in Nepal. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (4).
Vitenskapelig artikkel
Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 1266 (1).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2019) Signature analysis of characteristic frequencies in a Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (7).
Vitenskapelig artikkel
Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) A comprehensive review of verification and validation techniques applied to hydraulic turbines. International Journal of Fluid Machinery and Systems. volum 12 (4).
Vitenskapelig oversiktsartikkel/review
Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel
Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2019) Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environmental Science (EES). volum 240.
Vitenskapelig artikkel
Østby, Petter Thorvald Krogh; Agnalt, Einar; Haugen, Bjørn; Billdal, Jan Tore; Dahlhaug, Ole Gunnar. (2019) Fluid structure interaction of Francis-99 turbine and experimental validation. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel

2018

Agnalt, Einar; Østby, Petter Thorvald Krogh; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration. volum 2018.
Vitenskapelig artikkel
Bergan, Carl Werdelin; Solemslie, Bjørn Winther; Østby, Petter Thorvald Haug; Dahlhaug, Ole Gunnar. (2018) Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows. International Journal of Fluid Machinery and Systems. volum 11 (2).
Vitenskapelig artikkel
Chitrakar, Sailesh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2018) Numerical investigation of the effet of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines. Engineering Applications of Computational Fluid Mechanics. volum 12 (1).
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Simplified hydrodynamic analysis on the general shape of the hill charts of Francis turbines using shroud-streamline modeling. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Sannes, Daniel B.; Iliev, Igor; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Pressure Pulsation in a High Head Francis Turbine Operating at Variable Speed. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Shrestha, K.P.; Chitrakar, Sailesh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2018) Performance Comparison of Optimized Designs of Francis Turbines Exposed to Sediment Erosion in various Operating Conditions. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Siemonsmeier, Marius; Baumanns, Philipp; van Bracht, Niklas; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert; Dahlhaug, Ole Gunnar; Heidenreich, Sara. (2018) Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. 2018.
Rapport
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) A Reference Pelton Turbine - Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket. Journal of Fluids Engineering - Trancactions of The ASME. volum 140 (12).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy. volum 126.
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental investigation of a Francis turbine during exigent ramping and transition into total load rejection. Journal of Hydraulic Engineering. volum 144 (6).
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy. volum 119.
Vitenskapelig artikkel
Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Interaction between trailing edge wake and vortex rings in a Francis turbine at runaway condition: Compressible large eddy simulation. Physics of Fluids. volum 30 (7).
Vitenskapelig artikkel
Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2018) Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions. Mechanical systems and signal processing. volum 108 (8).
Vitenskapelig artikkel
Ulvan, Vegard S.; Kverno, Johannes O.; Dahlhaug, Ole Gunnar. (2018) Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS). volum 1042.
Vitenskapelig artikkel

2017

Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 782 (1).
Leder
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2017) Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME. volum 139 (9).
Vitenskapelig artikkel
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2017) Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering. volum 6 (2).
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen.
Kronikk
Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams. volum 24.
Vitenskapelig artikkel
Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems. volum 10 (4).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear. volum 390-391.
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine. Renewable Energy. volum 107.
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2017) Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy. volum 113.
Vitenskapelig artikkel
Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup. Journal of Renewable and Sustainable Energy. volum 9 (6).
Vitenskapelig artikkel
Østby, Petter Thorvald Haug; Billdal, Jan Tore; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2017) On the relation between friction losses and pressure pulsations caused by Rotor Stator interaction on the Francis-99 turbine. Journal of Physics: Conference Series (JPCS). volum 782 (1).
Vitenskapelig artikkel

2016

Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.).
Kronikk
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2016) Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy. volum 97.
Vitenskapelig oversiktsartikkel/review
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2016) Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen.
Kronikk
Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse. Adresseavisen.
Kronikk
Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2016) Evaluation of runner cone extension to dampen pressure pulsations in a Francis model turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 49 (8).
Vitenskapelig artikkel
Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2016) Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sādhanā (Bangalore). volum 41 (11).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2016) A reference Pelton turbine - High speed visualization in the rotating frame. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2016) Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Thapa, Biraj Singh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2016) Design and development of guide vane cascade for a low speed number Francis turbine. Journal of Hydrodynamics. volum 28 (4).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies. volum 9 (2).
Vitenskapelig oversiktsartikkel/review
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review. volum 68:010802 (1).
Vitenskapelig oversiktsartikkel/review
Østby, Petter Thorvald Haug; Billdal, Jan Tore; Sivertsen, Kjell; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2016) Dynamic Stresses In High Head Francis Turbines. International journal on hydropower and dams. volum 3.
Vitenskapelig artikkel

2015

Bergan, Carl Werdelin; Amiri, Kaveh; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Preliminary Measurements of the Radial Velocity in the Francis-99 Draft Tube Cone. Journal of Physics: Conference Series (JPCS). volum 579 (1).
Vitenskapelig artikkel
Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 579.
Leder
Holst, Martin; Dahlhaug, Ole Gunnar; Faudot, Celine. (2015) CFD Analysis of Wave-Induced Loads on Tidal Turbine Blades. IEEE Journal of Oceanic Engineering. volum 40 (3).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2015) Studying the effects of jet alignment in Pelton units. International journal on hydropower and dams. volum 22 (3).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2015) Sediment erosion in hydro turbines and its effect on the flow around guide vanes of Francis turbine. Renewable and Sustainable Energy Reviews. volum 49.
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar; Gandhi, BK. (2015) Experimental investigation of a high head Francis turbine during spin-no-load operation. Journal of Fluids Engineering - Trancactions of The ASME. volum 137 (6).
Vitenskapelig artikkel
Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Experimental investigations of a model Francis turbine during shutdown at synchronous speed. Renewable Energy. volum 83.
Vitenskapelig artikkel

2014

Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen.
Kronikk
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. IOP Conference Series: Earth and Environmental Science (EES). volum 22 (1).
Vitenskapelig artikkel
Sundström, Joel; Amiri, Kaveh; Bergan, Carl Werdelin; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) LDA measurements in the Francis-99 draft tube cone. IOP Conference Series: Earth and Environmental Science (EES). volum 22 (1).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research. volum 52 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Transient pressure measurements on a high head model Francis turbine during emergency shutdown, total load rejection, and runaway. Journal of Fluids Engineering - Trancactions of The ASME. volum 136 (12).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, B.K.; Dahlhaug, Ole Gunnar. (2014) Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown. Journal of Hydrodynamics. volum 26 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, Bhupendra Kumar; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research. volum 52 (2).
Vitenskapelig artikkel

2013

Fossum, Peter Kalsaas; Frøyd, Lars; Dahlhaug, Ole Gunnar. (2013) Design and Fatigue Performance of Large Utility-Scale Wind Turbine Blades. Journal of solar energy engineering. volum 135 (3).
Vitenskapelig artikkel
Shrestha, Krishna Prasad; Dahlhaug, Ole Gunnar; Thapa, Bhola; Neopane, Hari Prasad; Gurung, Nikhel; Kayastha, Atmaram. (2013) Optimized design of Francis runner for sand laden water. Hydro Nepal: Journal of Water, Energy and Environment. volum July (13).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2013) Experimental and Numerical Studies for a High Head Francis Turbine at Several Operating Points. Journal of Fluids Engineering - Trancactions of The ASME. volum 135 (11).
Vitenskapelig artikkel

2012

Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia. volum 20.
Vitenskapelig artikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Effect of Pitch and Safety System Design on Dimensioning Loads for Offshore Wind Turbines During Grid Fault. Energy Procedia. volum 0 (24).
Vitenskapelig artikkel
Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2012) The effect of sediment characteristics for predicting erosion on Francis turbines blades. International journal on hydropower and dams. volum 19 (1).
Vitenskapelig artikkel
Neopane, Hari Prasad; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) PARTICLE VELOCITY MEASUREMENT IN SWIRL FLOW, LABORATORY STUDIES. Kathmandu University Journal of Science, Engineering and Technology. volum 8 (1).
Vitenskapelig oversiktsartikkel/review
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES). volum 15.
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy. volum 47 (1).
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy. volum 41 (1).
Vitenskapelig artikkel

2011

Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi.
publications.INTERVJUSKRIFTL
Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad.
publications.INTERVJUSKRIFTL
Faudot, Celine; Dahlhaug, Ole Gunnar. (2011) Tidal Turbine Blades: Design and Dynamic Loads Estimation Using CFD and Blade Element Momentum Theory (OMAE2011-49740). 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) A Conceptual Design Method for Parametric Study of Blades for Offshore Wind Turbines (OMAE2011-49743). 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) Rotor Design for a 10 MW Offshore Wind Turbine. Proceedings of the Twenty-First (2011) International Offshore and Polar Engineering Conference.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering. volum 11 (6).
Vitenskapelig oversiktsartikkel/review

2010

Dahlhaug, Ole Gunnar; Skåre, Per Egil; Mossing, V.; Gutierrez, A.. (2010) Erosion resistant coatings for Francis runner and guidevanes. International journal on hydropower and dams. volum 17 (2).
Vitenskapelig artikkel

2009

Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment.
Vitenskapelig artikkel

2008

Bajracharya, Tri ratna; Acharya, B.; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2008) Sand erosion of Pelton turbine nozzles and buckets: A case study of Chilime Hydropower Plant. Wear. volum 264 (3-4).
Vitenskapelig artikkel

2007

Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. 2007.
Rapport
Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. 2007.
Rapport
Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. 2007.
Rapport

2006

Bajracharya, Tri ratna; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2006) Correlation between sand led erosion of Pelton buckets and efficiency losses in high head hydropower schemes. Journal of the institute of engineering. volum 6 (1).
Vitenskapelig artikkel
Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. 2006.
Rapport
Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. 2006.
Rapport

2005

Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2005) Sediment and efficiency measurement at Khimti I hydropower plant - Monsoon 2004. 2005.
Rapport

2004

Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. 2004.
Rapport
Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. 2004.
Rapport

2003

Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide. volum II (number 4, september).
Vitenskapelig artikkel

2002

Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi. volum 42 (4).
Populærvitenskapelig artikkel
Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. 2002.
Rapport
Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. 2002.
Rapport
Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi. volum 42 (4).
Populærvitenskapelig artikkel
Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. 2002.
Rapport
Knudsen, Sverre D; Dahlhaug, Ole Gunnar; Kjeldsen, Morten; Børresen, Bjarne. (2002) Turbomachinery Calculations at highly off-design conditions. International Journal of Applied Mechanics and Engineering. volum 7 (1).
Vitenskapelig artikkel
Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. 2002.
Rapport

2000

Dahlhaug, Ole Gunnar; Brekke, Hermod. (2000) HIGH TECNOLOGY VERSUS LOW COSTS FOR SMALL HYDRO FRANCIS TURBINES. SMALL HYDRO 2000, Conference Proceedings, 8-12 May 2000.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Skåre, Per Egil; Børresen, Bjarne. (2000) CFD-CALCULATION OF SWIRLFLOW IN A CONICAL DIFFUSER AND BEND. IAHR Symposium, Hydraulic Machinery and Systems. Conference Proceedings.
Vitenskapelig artikkel

1998

Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. 1998.
Doktorgradsavhandling
Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. 1998.
Rapport

1996

Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. 1996.
Rapport

Tidsskriftspublikasjoner

Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2022) Development of simplified model for prediction of sediment induced erosion in Francis turbine’s sidewall gaps. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (012016).
Vitenskapelig artikkel
Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2022) Application of hydro-abrasive erosion model from IEC 62364:2019 standard in Francis turbines. IOP Conference Series: Earth and Environmental Science (EES). volum 1079.
Vitenskapelig artikkel
Gautam, Saroj; Acharya, Nirmal; Chitrakar, Sailesh; Neopane, Hari Prasad; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Sediment erosion in the labyrinths of Francis turbine: A numerical study. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (01203).
Vitenskapelig artikkel
Gautam, Saroj; Acharya, Nirmal; Lama, Ram; Chitrakar, Sailesh; Neopane, Hari Prasad; Zhu, Baoshan; Dahlhaug, Ole Gunnar. (2022) Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal. Sustainable Energy Technologies and Assessments. volum 51.
Vitenskapelig artikkel
Gautam, Saroj; Chitrakar, Sailesh; Neopane, Hari Prasad; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2022) Numerical investigation of a Pelton turbine at several operating conditions. IOP Conference Series: Earth and Environmental Science (EES). volum 1037.
Vitenskapelig artikkel
Kverno, Johannes Opedal; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) High flexibility in Francis turbine operation and design philosophy: A review. IOP Conference Series: Earth and Environmental Science (EES). volum 1037 (1).
Vitenskapelig oversiktsartikkel/review
Lazarevikj, Marija; Stojkovski, Filip; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2022) Parameter based tool for Francis turbine guide vanes design using coupled MATLAB-ANSYS approach. Journal of Sustainable Development of Energy, Water and Environment Systems. volum 10 (3).
Vitenskapelig artikkel
Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2021) Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Energies. volum 14 (14).
Vitenskapelig artikkel
Acharya, Nirmal; Trivedi, Chirag; Gautam, Saroj; Dahlhaug, Ole Gunnar. (2021) Investigation of sediment erosion phenomenon for different blade angle distribution in Francis runner. IOP Conference Series: Earth and Environmental Science (EES). volum 174.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen.
Kronikk
Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen.
Kronikk
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Sigurdsson, Bjarki; Tengs, Erik Os. (2021) Modal testing of the Francis-99 runner. IOP Conference Series: Earth and Environmental Science (EES). volum 774 (1).
Vitenskapelig artikkel
Stojkovski, Filip; Lazarevikj, Marija; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar. (2021) Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine. Energies. volum 14 (9).
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar; Lee, Young Ho; Zhongdong, Qian. (2021) Current research in hydraulic turbines against sediment erosion: International partnership and collaborations. IOP Conference Series: Earth and Environmental Science (EES). volum 627.
Vitenskapelig artikkel
Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar. (2020) The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine. International Journal of Fluid Machinery and Systems. volum 13 (2).
Vitenskapelig artikkel
Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2020) Review on numerical techniques applied in impulse hydro turbines. Renewable Energy. volum 159.
Vitenskapelig oversiktsartikkel/review
Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2020) Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Journal of Fluids Engineering - Trancactions of The ASME. volum 142 (10).
Vitenskapelig artikkel
Støren, Gine Kirkebøen; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2020) Signature Investigation of Typical Faults on Francis Turbines. Journal of Physics: Conference Series (JPCS). volum 1608.
Vitenskapelig artikkel
Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar. (2020) Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability. volum 10 (12).
Vitenskapelig artikkel
Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar; Zoran, Markov; Engstrom, Fredrik; Lysaker, Henning. (2020) Investigation of a Francis turbine during speed variation: Inception of cavitation. Renewable Energy. volum 166 (4).
Vitenskapelig artikkel
Volent, Eirik; Sagmo, Kristian Forfot; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2020) Experimental Study of Flow Structure in Converging–Diverging Axisymmetric Geometry. Journal of Fluids Engineering - Trancactions of The ASME. volum 142 (4).
Vitenskapelig artikkel
Acharya, Nirmal; Trivedi, Chirag; Wahl, Nina Marie; Gautam, S; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Numerical study of sediment erosion in guide vanes of a high head Francis turbine. Journal of Physics: Conference Series (JPCS). volum 1266 (012004).
Vitenskapelig artikkel
Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery. volum 2019.
Vitenskapelig artikkel
Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) Onboard measurements of pressure pulsations in a high head Francis model runner. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (2).
Vitenskapelig artikkel
Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2019) An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (6).
Vitenskapelig artikkel
Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Østby, Petter Thorvald Krogh; Dahlhaug, Ole Gunnar. (2019) Damping Measurements on a Multi-Blade Cascade with Multiple Degrees of Freedom: A Francis-99 Test Case. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) Development of a test rig for investigating the flow field around guide vanes of Francis turbines. Flow Measurement and Instrumentation. volum 70.
Vitenskapelig artikkel
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2019) The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (7).
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240.
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable and Sustainable Energy Reviews. volum 103.
Vitenskapelig oversiktsartikkel/review
Neopane, Hari Prasad; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar. (2019) Role of Turbine Testing Lab for overcoming the challenges related to hydropower development in Nepal. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (4).
Vitenskapelig artikkel
Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 1266 (1).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2019) Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2019) Signature analysis of characteristic frequencies in a Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 240 (7).
Vitenskapelig artikkel
Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) A comprehensive review of verification and validation techniques applied to hydraulic turbines. International Journal of Fluid Machinery and Systems. volum 12 (4).
Vitenskapelig oversiktsartikkel/review
Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian. (2019) Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel
Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os. (2019) Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environmental Science (EES). volum 240.
Vitenskapelig artikkel
Østby, Petter Thorvald Krogh; Agnalt, Einar; Haugen, Bjørn; Billdal, Jan Tore; Dahlhaug, Ole Gunnar. (2019) Fluid structure interaction of Francis-99 turbine and experimental validation. Journal of Physics: Conference Series (JPCS). volum 1296 (1).
Vitenskapelig artikkel
Agnalt, Einar; Østby, Petter Thorvald Krogh; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration. volum 2018.
Vitenskapelig artikkel
Bergan, Carl Werdelin; Solemslie, Bjørn Winther; Østby, Petter Thorvald Haug; Dahlhaug, Ole Gunnar. (2018) Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows. International Journal of Fluid Machinery and Systems. volum 11 (2).
Vitenskapelig artikkel
Chitrakar, Sailesh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2018) Numerical investigation of the effet of leakage flow through erosion-induced clearance gaps of guide vanes on the performance of Francis turbines. Engineering Applications of Computational Fluid Mechanics. volum 12 (1).
Vitenskapelig artikkel
Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Simplified hydrodynamic analysis on the general shape of the hill charts of Francis turbines using shroud-streamline modeling. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Sannes, Daniel B.; Iliev, Igor; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Pressure Pulsation in a High Head Francis Turbine Operating at Variable Speed. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Shrestha, K.P.; Chitrakar, Sailesh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2018) Performance Comparison of Optimized Designs of Francis Turbines Exposed to Sediment Erosion in various Operating Conditions. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2018) A Reference Pelton Turbine - Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket. Journal of Fluids Engineering - Trancactions of The ASME. volum 140 (12).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy. volum 126.
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental investigation of a Francis turbine during exigent ramping and transition into total load rejection. Journal of Hydraulic Engineering. volum 144 (6).
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy. volum 119.
Vitenskapelig artikkel
Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2018) Interaction between trailing edge wake and vortex rings in a Francis turbine at runaway condition: Compressible large eddy simulation. Physics of Fluids. volum 30 (7).
Vitenskapelig artikkel
Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2018) Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions. Mechanical systems and signal processing. volum 108 (8).
Vitenskapelig artikkel
Ulvan, Vegard S.; Kverno, Johannes O.; Dahlhaug, Ole Gunnar. (2018) Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics: Conference Series (JPCS). volum 1042 (1).
Vitenskapelig artikkel
Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS). volum 1042.
Vitenskapelig artikkel
Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 782 (1).
Leder
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2017) Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME. volum 139 (9).
Vitenskapelig artikkel
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2017) Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering. volum 6 (2).
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen.
Kronikk
Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams. volum 24.
Vitenskapelig artikkel
Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2017) Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems. volum 10 (4).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear. volum 390-391.
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine. Renewable Energy. volum 107.
Vitenskapelig artikkel
Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2017) Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy. volum 113.
Vitenskapelig artikkel
Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup. Journal of Renewable and Sustainable Energy. volum 9 (6).
Vitenskapelig artikkel
Østby, Petter Thorvald Haug; Billdal, Jan Tore; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2017) On the relation between friction losses and pressure pulsations caused by Rotor Stator interaction on the Francis-99 turbine. Journal of Physics: Conference Series (JPCS). volum 782 (1).
Vitenskapelig artikkel
Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.).
Kronikk
Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2016) Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy. volum 97.
Vitenskapelig oversiktsartikkel/review
Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad. (2016) Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen.
Kronikk
Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse. Adresseavisen.
Kronikk
Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2016) Evaluation of runner cone extension to dampen pressure pulsations in a Francis model turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 49 (8).
Vitenskapelig artikkel
Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2016) Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sādhanā (Bangalore). volum 41 (11).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2016) A reference Pelton turbine - High speed visualization in the rotating frame. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2016) Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environmental Science (EES). volum 49.
Vitenskapelig artikkel
Thapa, Biraj Singh; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2016) Design and development of guide vane cascade for a low speed number Francis turbine. Journal of Hydrodynamics. volum 28 (4).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies. volum 9 (2).
Vitenskapelig oversiktsartikkel/review
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review. volum 68:010802 (1).
Vitenskapelig oversiktsartikkel/review
Østby, Petter Thorvald Haug; Billdal, Jan Tore; Sivertsen, Kjell; Haugen, Bjørn; Dahlhaug, Ole Gunnar. (2016) Dynamic Stresses In High Head Francis Turbines. International journal on hydropower and dams. volum 3.
Vitenskapelig artikkel
Bergan, Carl Werdelin; Amiri, Kaveh; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Preliminary Measurements of the Radial Velocity in the Francis-99 Draft Tube Cone. Journal of Physics: Conference Series (JPCS). volum 579 (1).
Vitenskapelig artikkel
Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2015) Francis-99 Workshop 1: steady operation of Francis turbines. Journal of Physics: Conference Series (JPCS). volum 579.
Leder
Holst, Martin; Dahlhaug, Ole Gunnar; Faudot, Celine. (2015) CFD Analysis of Wave-Induced Loads on Tidal Turbine Blades. IEEE Journal of Oceanic Engineering. volum 40 (3).
Vitenskapelig artikkel
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2015) Studying the effects of jet alignment in Pelton units. International journal on hydropower and dams. volum 22 (3).
Vitenskapelig artikkel
Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2015) Sediment erosion in hydro turbines and its effect on the flow around guide vanes of Francis turbine. Renewable and Sustainable Energy Reviews. volum 49.
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar; Gandhi, BK. (2015) Experimental investigation of a high head Francis turbine during spin-no-load operation. Journal of Fluids Engineering - Trancactions of The ASME. volum 137 (6).
Vitenskapelig artikkel
Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2015) Experimental investigations of a model Francis turbine during shutdown at synchronous speed. Renewable Energy. volum 83.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen.
Kronikk
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. IOP Conference Series: Earth and Environmental Science (EES). volum 22 (1).
Vitenskapelig artikkel
Sundström, Joel; Amiri, Kaveh; Bergan, Carl Werdelin; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2014) LDA measurements in the Francis-99 draft tube cone. IOP Conference Series: Earth and Environmental Science (EES). volum 22 (1).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research. volum 52 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Bhupendrakumar, Gandhi; Dahlhaug, Ole Gunnar. (2014) Transient pressure measurements on a high head model Francis turbine during emergency shutdown, total load rejection, and runaway. Journal of Fluids Engineering - Trancactions of The ASME. volum 136 (12).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, B.K.; Dahlhaug, Ole Gunnar. (2014) Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown. Journal of Hydrodynamics. volum 26 (2).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, Bhupendra Kumar; Dahlhaug, Ole Gunnar. (2014) Pressure measurements on a high-head Francis turbine during load acceptance and rejection. Journal of Hydraulic Research. volum 52 (2).
Vitenskapelig artikkel
Fossum, Peter Kalsaas; Frøyd, Lars; Dahlhaug, Ole Gunnar. (2013) Design and Fatigue Performance of Large Utility-Scale Wind Turbine Blades. Journal of solar energy engineering. volum 135 (3).
Vitenskapelig artikkel
Shrestha, Krishna Prasad; Dahlhaug, Ole Gunnar; Thapa, Bhola; Neopane, Hari Prasad; Gurung, Nikhel; Kayastha, Atmaram. (2013) Optimized design of Francis runner for sand laden water. Hydro Nepal: Journal of Water, Energy and Environment. volum July (13).
Vitenskapelig artikkel
Trivedi, Chirag; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar. (2013) Experimental and Numerical Studies for a High Head Francis Turbine at Several Operating Points. Journal of Fluids Engineering - Trancactions of The ASME. volum 135 (11).
Vitenskapelig artikkel
Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia. volum 20.
Vitenskapelig artikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Effect of Pitch and Safety System Design on Dimensioning Loads for Offshore Wind Turbines During Grid Fault. Energy Procedia. volum 0 (24).
Vitenskapelig artikkel
Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2012) The effect of sediment characteristics for predicting erosion on Francis turbines blades. International journal on hydropower and dams. volum 19 (1).
Vitenskapelig artikkel
Neopane, Hari Prasad; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) PARTICLE VELOCITY MEASUREMENT IN SWIRL FLOW, LABORATORY STUDIES. Kathmandu University Journal of Science, Engineering and Technology. volum 8 (1).
Vitenskapelig oversiktsartikkel/review
Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES). volum 15.
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy. volum 47 (1).
Vitenskapelig artikkel
Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy. volum 41 (1).
Vitenskapelig artikkel
Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi.
publications.INTERVJUSKRIFTL
Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad.
publications.INTERVJUSKRIFTL
Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering. volum 11 (6).
Vitenskapelig oversiktsartikkel/review
Dahlhaug, Ole Gunnar; Skåre, Per Egil; Mossing, V.; Gutierrez, A.. (2010) Erosion resistant coatings for Francis runner and guidevanes. International journal on hydropower and dams. volum 17 (2).
Vitenskapelig artikkel
Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment.
Vitenskapelig artikkel
Bajracharya, Tri ratna; Acharya, B.; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2008) Sand erosion of Pelton turbine nozzles and buckets: A case study of Chilime Hydropower Plant. Wear. volum 264 (3-4).
Vitenskapelig artikkel
Bajracharya, Tri ratna; Joshi, C.B.; Saini, R.P.; Dahlhaug, Ole Gunnar. (2006) Correlation between sand led erosion of Pelton buckets and efficiency losses in high head hydropower schemes. Journal of the institute of engineering. volum 6 (1).
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide. volum II (number 4, september).
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi. volum 42 (4).
Populærvitenskapelig artikkel
Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi. volum 42 (4).
Populærvitenskapelig artikkel
Knudsen, Sverre D; Dahlhaug, Ole Gunnar; Kjeldsen, Morten; Børresen, Bjarne. (2002) Turbomachinery Calculations at highly off-design conditions. International Journal of Applied Mechanics and Engineering. volum 7 (1).
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Brekke, Hermod. (2000) HIGH TECNOLOGY VERSUS LOW COSTS FOR SMALL HYDRO FRANCIS TURBINES. SMALL HYDRO 2000, Conference Proceedings, 8-12 May 2000.
Vitenskapelig artikkel
Dahlhaug, Ole Gunnar; Skåre, Per Egil; Børresen, Bjarne. (2000) CFD-CALCULATION OF SWIRLFLOW IN A CONICAL DIFFUSER AND BEND. IAHR Symposium, Hydraulic Machinery and Systems. Conference Proceedings.
Vitenskapelig artikkel

Del av bok/rapport

Faudot, Celine; Dahlhaug, Ole Gunnar. (2011) Tidal Turbine Blades: Design and Dynamic Loads Estimation Using CFD and Blade Element Momentum Theory (OMAE2011-49740). 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) A Conceptual Design Method for Parametric Study of Blades for Offshore Wind Turbines (OMAE2011-49743). 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2011) - Vol. V.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) Rotor Design for a 10 MW Offshore Wind Turbine. Proceedings of the Twenty-First (2011) International Offshore and Polar Engineering Conference.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Rapport

Siemonsmeier, Marius; Baumanns, Philipp; van Bracht, Niklas; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert; Dahlhaug, Ole Gunnar; Heidenreich, Sara. (2018) Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. 2018.
Rapport
Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. 2007.
Rapport
Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. 2007.
Rapport
Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. 2007.
Rapport
Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. 2006.
Rapport
Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. 2006.
Rapport
Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2005) Sediment and efficiency measurement at Khimti I hydropower plant - Monsoon 2004. 2005.
Rapport
Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. 2004.
Rapport
Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. 2004.
Rapport
Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. 2002.
Rapport
Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. 2002.
Rapport
Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. 2002.
Rapport
Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. 2002.
Rapport
Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. 1998.
Doktorgradsavhandling
Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. 1998.
Rapport
Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. 1996.
Rapport

Undervisning

Emner

Formidling