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).
- 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.
- 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).
- 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.
- 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).
- 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).
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).
- 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.
- Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen.
- Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen.
- 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).
- 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).
- 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.
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).
- 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.
- 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).
- 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.
- 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).
- 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).
- 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).
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).
- 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.
- 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).
- 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).
- 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).
- 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.
- 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).
- 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.
- Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable & Sustainable Energy Reviews. volum 103.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
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.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy. volum 126.
- 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).
- Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy. volum 119.
- 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).
- 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).
- 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).
- Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS). volum 1042.
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).
- 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).
- 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).
- Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen.
- 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.
- 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).
- Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear. volum 390-391.
- 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.
- 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.
- 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).
- 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).
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.
- Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.).
- 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.
- 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.
- Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen.
- Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse. Adresseavisen.
- 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).
- 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.
- 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).
- 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.
- 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.
- 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).
- 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).
- Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review. volum 68:010802 (1).
- 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.
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).
- 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.
- 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).
- 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).
- 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 & Sustainable Energy Reviews. volum 49.
- 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).
- 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.
2014
- Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
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).
- 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).
- 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).
2012
- Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia. volum 20.
- 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).
- 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).
- 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).
- Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES). volum 15.
- Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy. volum 47 (1).
- Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy. volum 41 (1).
2011
- Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi.
- Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad.
- 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.
- 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.
- 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.
- Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering. volum 11 (6).
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).
2009
- Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment.
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).
2007
- Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. 2007.
- Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. 2007.
- Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. 2007.
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).
- Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. 2006.
- Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. 2006.
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.
2004
- Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. 2004.
- Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. 2004.
2003
- Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide. volum II (number 4, september).
2002
- Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi. volum 42 (4).
- Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. 2002.
- Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. 2002.
- Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi. volum 42 (4).
- Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. 2002.
- 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).
- Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. 2002.
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.
- 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.
1998
- Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. 1998.
- Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. 1998.
1996
- Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. 1996.
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).
- 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.
- 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).
- 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.
- 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).
- 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).
- 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).
- 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.
- Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas. (2021) Norge må bygge ut mer vannkraft. Adresseavisen.
- Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad. (2021) Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen.
- 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).
- 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).
- 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.
- 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).
- 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.
- 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).
- 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.
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- 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).
- 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).
- 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.
- 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).
- 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.
- Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar. (2019) Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable & Sustainable Energy Reviews. volum 103.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- 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.
- 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).
- 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.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy. volum 126.
- 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).
- Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy. volum 119.
- 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).
- 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).
- 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).
- Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS). volum 1042.
- 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).
- 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).
- 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).
- Dahlhaug, Ole Gunnar. (2017) Norsk vannkraft kan utnyttes bedre. Adresseavisen.
- 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.
- 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).
- Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear. volum 390-391.
- 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.
- 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.
- 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).
- 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).
- 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.
- Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm. (2016) Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.).
- 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.
- 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.
- Dahlhaug, Ole Gunnar. (2016) Vannkraftens renessanse. Adresseavisen.
- Dahlhaug, Ole Gunnar. (2016) Vannkraftens rennessanse. Adresseavisen.
- 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).
- 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.
- 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).
- 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.
- 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.
- 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).
- 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).
- Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review. volum 68:010802 (1).
- 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.
- 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).
- 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.
- 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).
- 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).
- 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 & Sustainable Energy Reviews. volum 49.
- 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).
- 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.
- Dahlhaug, Ole Gunnar. (2014) Nøkkelen til en bedre verden. Adresseavisen.
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- 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).
- Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia. volum 20.
- 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).
- 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).
- 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).
- Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES). volum 15.
- Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy. volum 47 (1).
- Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy. volum 41 (1).
- Anne-Lise, Aakervik; Dahlhaug, Ole Gunnar. (2011) Vannkraft i vinden. Energi.
- Dahlhaug, Ole Gunnar; Valmot, Odd Richard. (2011) Løste en av vannkraftens største utfordringer. Teknisk Ukeblad.
- Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering. volum 11 (6).
- 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).
- Thapa, Bhola; Dahlhaug, Ole Gunnar. (2009) Turbine Testing Laboratory and its Role in Hydropower. Hydro Nepal: Journal of Water, Energy and Environment.
- 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).
- 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).
- Dahlhaug, Ole Gunnar; Brekke, Hermod. (2003) Innovations in Turbine Design and Generator Condition Assesment. Hydro Review Worldwide. volum II (number 4, september).
- Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi. volum 42 (4).
- Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi. volum 42 (4).
- 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).
- 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.
- 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.
Rapport/avhandling
- 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.
- Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 NTNU reference runner. 2007.
- Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Brandåstrø, Bård Aslak. (2007) Tokke model test 2006-2007 VA-Tech runner. 2007.
- Francke, Håkon Hjort; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Ramdal, Jørgen; Kobro, Einar. (2007) Saurdal pumpekraftverk - Virkningsgrads- og falltapsmålinger. 2007.
- Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. 2006.
- Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. 2006.
- Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2005) Sediment and efficiency measurement at Khimti I hydropower plant - Monsoon 2004. 2005.
- Dahlhaug, Ole Gunnar; Pratik, Pradhan. (2004) Efficiency measurements at Andi Khola Hydropower Plant. 2004.
- Dahlhaug, Ole Gunnar; Støle, Haakon; Pradhan, Pratik; Joshi, Pabitra; Bishwakarma, Meg. (2004) Sediment and efficiency measurements at Jhimruk Hydropower Plant - Monsoon 2003. 2004.
- Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. 2002.
- Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. 2002.
- Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. 2002.
- Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. 2002.
- Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. 1998.
- Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. 1998.
- Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. 1996.
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.
- 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.
- 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.
Undervisning
Emner
- TEP4195 - Turbomaskiner
- EP8407 - Høytrykks vannkraftmaskiner
- EP8406 - Frekvens- og effektregulering av vannkraftverk
- TEP4906 - Bærekraftige energisystemer, masteroppgave
- TEP4175 - Design av en vindturbin
- TEP4200 - Konstruksjon, drift og vedlikehold av hydrauliske strømningsmaskiner
- BA8510 - Falltapsanalyser vanntunneler. Hydraulikk, sprengningsteknikk og økonomi
- TEP4521 - Bærekraftige energisystemer, fordypningsprosjekt
- EP8411 - Vannkraftverk; utvalgte tverrfaglige tema
- SKOLE6622 - Teknologi og forskningslære - Modul III Vindturbiner og interessekonflikter
- TEP4506 - Bærekraftige energisystemer, fordypningsemne
Formidling
2014
- Bazilchuk, Nancy Reney; Tomasgard, Asgeir; Müller, Daniel Beat; Hertwich, Edgar G.; Dahlhaug, Ole Gunnar; Quale, Sverre; Undeland, Tore Marvin. (2014) Her er klimaforskernes råd. forskning.no [Internett]. 2014-04-13.
- Snøfugl, Ingvil; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian; Dahlhaug, Ole Gunnar; Lia, Leif. (2014) Nytt vannkraftsenter skal lokke ungdom vekk fra oljebransjen. Teknisk Ukeblad nettavis [Internett]. 2014-02-10.
- Tomasgard, Asgeir; Müller, Daniel Beat; Hertwich, Edgar G.; Dahlhaug, Ole Gunnar; Quale, Sverre; Undeland, Tore Marvin. (2014) Her er klimaforskernes råd. Gemini.no [Internett]. 2014-04-13.