2026

• Silva, Ana T.; Evangelista, Charlotte; Albayrak, Ismail; Alfredsen, Knut Tore; Dahlhaug, Ole Gunnar; Fossøy, Frode; Ghimire, Amul; Harby, Atle; Lungrin, Elina; Solberg, Ingrid. (2026) Sustainable Storage: Engineering and Ecology in Pumped Storage Hydropower. Renew Hydro (Norwegian Research Centre for Renewal of Hydropower Technology)
  Antologi
• Abregu Ochoa, Jim Furcio; Dahlhaug, Ole Gunnar. (2026) Evaluation on the erosion patterns change with full coated runner at Cahua hydropower plant from Statkraft Peru. Norges teknisk-naturvitenskapelige universitet
  Forskningsrapport
• Satyal, Sajan; Neopane, Hari Prasad; Chitrakar, Sailesh; Abregu Ochoa, Jim Furcio; Bhattarai, Bikram Singh; Dahlhaug, Ole Gunnar. (2026) Experimental study for investigation of pressure distribution in a Pelton injector under needle erosion. Engineering Failure Analysis
  Vitenskapelig artikkel

2025

• Qaderi, Abdul Raqib; Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) Leakage Flow in Staggered Labyrinth Seals: An Analytical Approach for Incompressible Fluids. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Rijal, Mamata; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad; Chitrakar, Sailesh. (2025) Lnfluence of Geometrical Parameters on the Sealing behavior of Band side Stepped Labyrinth seals of Francis turbine. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Bijukchhe, Pawan Lal; Neopane, Hari Prasad; Shrestha, Kushal; Dahlhaug, Ole Gunnar; Chitrakar, Sailesh. (2025) Study on the performance of Francis runner under variable speed operation at different operating conditions. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Qaderi, Abdul Raqib; Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) Comprehensive Review of Sediment Erosion Mechanisms and Their Impact on Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Abregu Ochoa, Jim Furcio; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2025) Analysis of discharge flow and losses from an eroded Pelton bucket components. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Abregu Ochoa, Jim Furcio; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther. (2025) Performance evaluation of an eroded Pelton turbine and components. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Pulg, Ulrich; Dahlhaug, Ole Gunnar. (2025) MANAGING TOTAL DISSOLVED GAS SUPERSATURATION IN NORWEGIAN HYDROPOWER SYSTEMS. Book of Extended Abstracts of the 41st IAHR World Congress– Innovative Water Eng. for Sustainable Development
  Konferanseabstract
• Kuhn, Wolf Ludwig; Sabil, Sahra Naima; Al-Khayat, Ahmed Omar; Dahlhaug, Ole Gunnar. (2025) DeGas project report. Summary of experimental and numerical studies on mitigating total dissolved gas supersaturation downstream hydropower plants using technical methods. Norsk institutt for naturforskning (NINA)
  Forskningsrapport
• Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro; Vagnoni, Elena. (2025) Revamping hydropower research 24/09/2024 - 24/09/2024 Brussels, Belgium. IOP Publishing
  Antologi
• Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) Experimental Approach to Evaluate Effectiveness of Vortex Generators on Francis Turbine Runner. Energies
  Vitenskapelig artikkel
• Belsnes, Michael Martin; Dahlhaug, Ole Gunnar; Doujak, Eduard; Mayo-Garcia, Rafael; Köhler, Berit; Sciullo, Alessandro; Sivrikaya, Aysen; Vagnoni, Elena. (2025) Preface for the "Revamping hydropower research” publication. IOP Conference Series: Earth and Environmental Science (EES)
  Leder
• Karna, Aaditya; Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2025) A review of condition monitoring in Francis turbines for predictive maintenance. Journal of Vibration and Control
  Vitenskapelig oversiktsartikkel
• Kuhn, Wolf Ludwig; Hihn, Jean-Yves; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2025) Comparing and combining methods that enhance liquid–gas mass transfer in a batch reactor: Ultrasonic degassing, aeration by gas bubbling, and liquid agitation. Ultrasonics sonochemistry
  Vitenskapelig artikkel
• Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2025) Methods to prevent or mitigate total dissolved gas supersaturation in the waterways downstream hydropower plants. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Zhao, Zilong; Qian, Zhongdong; Dahlhaug, Ole Gunnar; Guo, Zhiwei. (2025) Effect of leakage flow on sediment erosion in guide vane region. International Journal of Mechanical Sciences
  Vitenskapelig artikkel

2024

• Kayastha, Atmaram; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2024) A numerical study on the effect of spanwise installation of vortex generators on Francis runner blades. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Iliev, Igor; Dahlhaug, Ole Gunnar. (2024) Correlating Sediment Erosion in Rotary–Stationary Gaps of Francis Turbines with Complex Flow Patterns. Energies
  Vitenskapelig artikkel
• Abregu Ochoa, Jim Furcio; Scheuer, Jonas; Satyal, Sajan; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2024) Evaluation of the jet distortion by sediment erosion in the needle in the Pelton turbines. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel
• Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2024) Ultrasonic degassing of TDG supersaturated, flowing water. IOP Conference Series: Earth and Environmental Science (EES)
  Vitenskapelig artikkel

2023

• Silva, Ana T.; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Ravndal, Ravn Adrian; Simmons, Olivia. (2023) Investigation of salmon smolts reaction to hydraulic parameters when swimming. NTNU Norges teknisk-naturvitenskapelige universitet
  Masteroppgave
• Ravndal, Ravn Adrian; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Simmons, Olivia. (2023) Investigation of salmon smolts reaction to hydraulic parameters when swimming. NTNU Norges teknisk-naturvitenskapelige universitet
  Masteroppgave
• Kverno, Johannes Opedal; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Calibration of strain gauges on a model runner blade combining numerical and experimental data. Journal of Physics: Conference Series (JPCS)
  Vitenskapelig artikkel
• Kuhn, Wolf Ludwig; Solemslie, Bjørn Winther; Hihn, Jean-Yves; Dahlhaug, Ole Gunnar. (2023) Evaluating natural degassing in a river to create a baseline for comparison to technical degassing methods. Journal of Physics: Conference Series (JPCS)
  Vitenskapelig artikkel
• Kverno, Johannes Opedal; Vefring, Gaute Elde; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2023) Challenges with onboard strain measurements on a model Francis turbine runner. Journal of Physics: Conference Series (JPCS)
  Vitenskapelig artikkel
• Wang, Hong; Ahmed, Osman; DeSomber, Kyle; Sasthav, Colin; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar; Skjelbred, Hans Ivar; Vilberg, Ingrid Kristine. (2023) Adaptive Hybrid 1D Modeling for Digital Twin of Hydropower Systems.
  Vitenskapelig kapittel
• Wang, Hong; Ou, Shiqi; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Skjelbred, Hans Ivar; Vilberg, Ingrid Kristine. (2023) Adaptively Learned Modeling for a Digital Twin of Hydropower Turbines with Application to a Pilot Testing System. Mathematics
  Vitenskapelig artikkel
• Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• Kayastha, Atmaram; Ghimire, Amul; Bijukchhe, Pawan Lal; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2023) Numerical investigation of model Francis turbine for performance enhancement with geometrical modification. Journal of Physics: Conference Series (JPCS)
  Vitenskapelig artikkel
• Kverno, Johannes Opedal; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Iliev, Igor; Solemslie, Bjørn Winther. (2023) Flexible operation of Francis turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• Kuhn, Wolf Ludwig; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther; Hihn, Jean-Yves. (2023) Evaluation of ultrasonic degasification as a tool to mitigate total dissolved gas supersaturation downstream hydropower plants. Norwegian University of Science and Technology
  Doktoravhandling

2022

• 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)
  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)
  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)
  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)
  Vitenskapelig oversiktsartikkel
• 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
  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
  Vitenskapelig artikkel
• 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)
  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
  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
  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)
  Vitenskapelig artikkel
• 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)
  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)
  Vitenskapelig artikkel

2020

• Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2020) Review on numerical techniques applied in impulse hydro turbines. Renewable Energy
  Vitenskapelig oversiktsartikkel
• 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
  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
  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)
  Vitenskapelig artikkel
• 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
  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
  Vitenskapelig artikkel
• Vereide, Kaspar Vatland; Mo, Birger; Forseth, Torbjørn; Lia, Leif; Nysveen, Arne; Dahlhaug, Ole Gunnar; Schäffer, Linn Emelie; Bustos, Ana Adeva. (2020) AlternaFuture. Norwegian Research Centre for Hydropower Technology TRONDHEIM
  Forskningsrapport
• Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar. (2020) Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability
  Vitenskapelig artikkel

2019

• 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)
  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)
  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
  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)
  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)
  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)
  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)
  Vitenskapelig artikkel
• 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)
  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)
  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
  Vitenskapelig oversiktsartikkel
• 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)
  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)
  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
  Vitenskapelig artikkel
• Agnalt, Einar; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo. (2019) Rotor-Stator Interaction in Low-Specific Speed Francis Turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• 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)
  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
  Vitenskapelig oversiktsartikkel
• 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)
  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)
  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
  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
  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
  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)
  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)
  Vitenskapelig artikkel
• Siemonsmeier, Marius; Baumanns, Philipp; Bracht, Niklas van; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert; Dahlhaug, Ole Gunnar; Heidenreich, Sara. (2018) Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. Norges teknisk-naturvitenskapelige universitet
  Forskningsrapport
• 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)
  Vitenskapelig artikkel
• Volent, Eirik; Dahlhaug, Ole Gunnar. (2018) Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series (JPCS)
  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)
  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
  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
  Vitenskapelig artikkel
• Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2018) Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy
  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
  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
  Vitenskapelig artikkel
• Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2018) Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy
  Vitenskapelig artikkel

2017

• Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar. (2017) Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy
  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
  Vitenskapelig artikkel
• 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
  Vitenskapelig artikkel
• Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola. (2017) Effects of sediment erosion in guide vanes of Francis turbine. Wear
  Vitenskapelig artikkel
• Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar. (2017) Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams
  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
  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
  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
  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)
  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)
  Leder

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)
  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)
  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)
  Vitenskapelig artikkel
• 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
  Vitenskapelig oversiktsartikkel
• Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2016) Experimental methods and design of a Pelton bucket. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian; Thapa, Bhola. (2016) Effects of sediment erosion in guide vanes of Francis turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar. (2016) Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review
  Vitenskapelig oversiktsartikkel
• 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
  Vitenskapelig oversiktsartikkel
• 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)
  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)
  Vitenskapelig artikkel
• 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
  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
  Vitenskapelig artikkel
• 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)
  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
  Vitenskapelig artikkel

2015

• Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2015) Studying the effects of jet alignment in Pelton units. International journal on hydropower and dams
  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
  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
  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)
  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)
  Leder
• 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
  Vitenskapelig artikkel
• Holst, Martin; Dahlhaug, Ole Gunnar; Faudot, Celine. (2015) CFD Analysis of Wave-Induced Loads on Tidal Turbine Blades. IEEE Journal of Oceanic Engineering
  Vitenskapelig artikkel

2014

• 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
  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
  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
  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)
  Vitenskapelig artikkel
• Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2014) A reference pelton turbine - design and efficiency measurements. IOP Conference Series: Earth and Environmental Science (EES)
  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
  Vitenskapelig artikkel

2013

• Eltvik, Mette; Dahlhaug, Ole Gunnar. (2013) Sediment erosion in Francis turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• 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
  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
  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
  Vitenskapelig artikkel

2012

• Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar. (2012) A Reference Pelton Turbine Design. IOP Conference Series: Earth and Environmental Science (EES)
  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
  Vitenskapelig artikkel
• Frøyd, Lars; Dahlhaug, Ole Gunnar. (2012) Wind Turbine Design: Evaluation of Dynamic Loads on Large Offshore Wind Turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling
• 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
  Vitenskapelig oversiktsartikkel
• Faudot, Celine; Dahlhaug, Ole Gunnar. (2012) Prediction of Wave Loads on Tidal Turbine Blades. Energy Procedia
  Vitenskapelig artikkel
• Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Empirical modelling of sediment erosion in Francis turbines. Energy
  Vitenskapelig artikkel
• Thapa, Biraj Singh; Thapa, Bhola; Dahlhaug, Ole Gunnar. (2012) Current research in hydraulic turbines for handling sediments. Energy
  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
  Vitenskapelig artikkel

2011

• Neopane, Hari Prasad; Dahlhaug, Ole Gunnar; Cervantes, Michel. (2011) Sediment erosion in hydraulic turbines. Global Journal of researches in engineering
  Vitenskapelig oversiktsartikkel
• Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) Rotor Design for a 10 MW Offshore Wind Turbine.
  Vitenskapelig kapittel
• Faudot, Celine; Dahlhaug, Ole Gunnar. (2011) Tidal Turbine Blades: Design and Dynamic Loads Estimation Using CFD and Blade Element Momentum Theory (OMAE2011-49740).
  Vitenskapelig kapittel
• Frøyd, Lars; Dahlhaug, Ole Gunnar. (2011) A Conceptual Design Method for Parametric Study of Blades for Offshore Wind Turbines (OMAE2011-49743).
  Vitenskapelig kapittel
• Ramdal, Jørgen; Dahlhaug, Ole Gunnar. (2011) Efficiency measurements in low head hydro power plants. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling

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
  Vitenskapelig artikkel
• Neopane, Hari Prasad; Dahlhaug, Ole Gunnar. (2010) Sediment Erosion in Hydro turbines. Norges teknisk-naturvitenskapelige universitet
  Doktoravhandling

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
  Vitenskapelig artikkel

2007

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

2006

• Skåre, Per Egil; Dahlhaug, Ole Gunnar; Kobro, Einar. (2006) Sandslitasje i Pelton løpehjul. SINTEF Energiforskning AS
  Forskningsrapport
• Skåre, Per Egil; Dahlhaug, Ole Gunnar. (2006) Tapsanalyse og Skalaeffekt. SINTEF Energiforskning AS
  Forskningsrapport
• 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
  Vitenskapelig artikkel

2005

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

2004

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

2003

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

2002

• Dahlhaug, Ole Gunnar. (2002) Utvikling av tidevannsturbin : prototype på 50 meters dyp i Kvalsundet. Xergi
  Populærvitenskapelig artikkel
• Dahlhaug, Ole Gunnar; Martinsen, Anna Louise. (2002) Nasjonalt kontroll-laboratorium for små turbiner. Xergi
  Populærvitenskapelig artikkel
• Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmålinger ved Øvre Porsa Kraftverk. Vannkraftlaboratoriet, NTNU
  Forskningsrapport
• Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak. (2002) Virkningsgrad- og falltapsmåling ved Breivikbotn Kraftverk. NTNU
  Forskningsrapport
• Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian. (2002) Status for mini- og mikrokraftverk i Norge. Vannkraftlaboratoriet, NTNU
  Forskningsrapport
• 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
  Vitenskapelig artikkel
• Martinsen, Anna Louise; Dahlhaug, Ole Gunnar. (2002) Miljøtilpasset el-kraftproduksjon ved små vannkraftverk i distrikts-Norge. NTNU, Trondheim, Norge
  Forskningsrapport

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
  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

1998

• Dahlhaug, Ole Gunnar. (1998) Termodynamisk virkningsgradsmåling for lave fallhøyder. SINTEF Energiforskning
  Forskningsrapport
• Dahlhaug, Ole Gunnar. (1998) A study of swirl flow in draft tubes. NTNU, Trondheim
  Doktoravhandling

1996

• Dahlhaug, Ole Gunnar; Vekve, Thomas. (1996) LDV-measurements in circular sections. SINTEF Strømningsmaskiner
  Forskningsrapport