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Showing results 1-50 of 209 << Previous 1 2 3 4 5    Next >>

2021
1 Acharya, Nirmal; Gautam, Saroj; Chitrakar, Sailesh; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Leakage Vortex Progression through a Guide Vane’s Clearance Gap and the Resulting Pressure Fluctuation in a Francis Turbine. Energies 2021 ;Volume 14.(14) p. -
NTNU Untitled
 
2 Acharya, Nirmal; Trivedi, Chirag; Gautam, Saroj; Dahlhaug, Ole Gunnar.
Investigation of sediment erosion phenomenon for different blade angle distribution in Francis runner. IOP Conference Series: Earth and Environmental Science (EES) 2021 ;Volume 174. p. -
NTNU Untitled
 
3 Dahlhaug, Ole Gunnar; Bakken, Tor Haakon; Hultgren, Liv Randi; Bergmann-Paulsen, Jonas.
Norge må bygge ut mer vannkraft. Adresseavisen 2021
NTNU Untitled
 
4 Dahlhaug, Ole Gunnar; Jørgen Ranum, Krokstad.
Vind- og vannkraften kan gjøre Norge 100 prosent fornybar. Adresseavisen 2021 p. 36-36
NTNU Untitled
 
5 Dahlhaug, Ole Gunnar; Thapa, Biraj Singh; Thapa, Bhola; Lee, Young Ho.
Current research in hydraulic turbines against sediment erosion: International partnership and collaborations. IOP Conference Series: Earth and Environmental Science (EES) 2021
NTNU Untitled
 
6 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Tengs, Erik Os.
Modal Testing of the Francis-99 Runner. 30th IAHR Symposium on Hydraulic Machinery and System; 2021-03-22 - 2021-03-25
NTNU Untitled
 
7 Stojkovski, Filip; Lazarevikj, Marija; Markov, Zoran; Iliev, Igor; Dahlhaug, Ole Gunnar.
Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine. Energies 2021 ;Volume 14.(9) p. -
NTNU Untitled
 
2020
8 Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar.
The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine. International Journal of Fluid Machinery and Systems 2020 ;Volume 13.(2) p. 302-309
NTNU Untitled
 
9 Chitrakar, Sailesh; Solemslie, Bjørn Winther; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Review on numerical techniques applied in impulse hydro turbines. Renewable Energy 2020 ;Volume 159. p. 843-859
NTNU Untitled
 
10 Iliev, Igor; Tengs, Erik Os; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach. Journal of Fluids Engineering - Trancactions of The ASME 2020 ;Volume 142.(10) p. -
NTNU Untitled
 
11 Støren, Gine Kirkebøen; Dahlhaug, Ole Gunnar; Solemslie, Bjørn Winther.
Signature Investigation of Typical Faults on Francis Turbines. Journal of Physics: Conference Series (JPCS) 2020 ;Volume 1608. p. -
NTNU Untitled
 
12 Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar.
Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification. Sustainability 2020 ;Volume 10.(12) p. -
NTNU Untitled
 
13 Trivedi, Chirag; Iliev, Igor; Dahlhaug, Ole Gunnar; Zoran, Markov; Engstrom, Fredrik; Lysaker, Henning.
Investigation of a Francis turbine during speed variation: Inception of cavitation. Renewable Energy 2020 ;Volume 166.(4) p. 147-162
NTNU Untitled
 
14 Volent, Eirik; Sagmo, Kristian Forfot; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
Experimental Study of Flow Structure in Converging–Diverging Axisymmetric Geometry. Journal of Fluids Engineering - Trancactions of The ASME 2020 ;Volume 142.(4) p. -
NTNU Untitled
 
2019
15 Acharya, Nirmal; Trivedi, Chirag; Wahl, Nina Marie; Gautam, S; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar.
Numerical study of sediment erosion in guide vanes of a high head Francis turbine. Journal of Physics: Conference Series (JPCS) 2019 ;Volume 1266.(012004)
NTNU Untitled
 
16 Agnalt, Einar.
Rotor-Stator Interaction in low-specific speed Francis Turbines. Trondheim: NTNU 2019 172 p. Doktoravhandlinger ved NTNU(2019:219)
NTNU Untitled
 
17 Agnalt, Einar; Iliev, Igor; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines. International Journal of Rotating Machinery 2019 ;Volume 2019. p. -
NTNU Untitled
 
18 Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
Onboard measurements of pressure pulsations in a high head Francis model runner. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(2) p. 1-10
NTNU Untitled
 
19 Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(6) p. 1-10
NTNU Untitled
 
20 Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Østby, Petter Thorvald Krogh; Dahlhaug, Ole Gunnar.
Damping Measurements on a Multi-Blade Cascade with Multiple Degrees of Freedom: A Francis-99 Test Case. Journal of Physics: Conference Series (JPCS) 2019 ;Volume 1296.(1) p. 1-12
NTNU Untitled
 
21 Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Development of a test rig for investigating the flow field around guide vanes of Francis turbines. Flow Measurement and Instrumentation 2019 ;Volume 70. p. -
NTNU Untitled
 
22 Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
The numerical and experimental investigation of erosion induced leakage flow through guide vanes of Francis turbine. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(7) p. -
NTNU Untitled
 
23 Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.
NTNU Untitled
 
24 Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Variable-speed operation of Francis turbines: A review of the perspectives and challenges. Renewable & Sustainable Energy Reviews 2019 ;Volume 103. p. 109-121
NTNU Untitled
 
25 Neopane, Hari Prasad; Chitrakar, Sailesh; Dahlhaug, Ole Gunnar.
Role of Turbine Testing Lab for overcoming the challenges related to hydropower development in Nepal. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(4)
NTNU Untitled
 
26 Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series (JPCS) 2019 ;Volume 1266.(1) p. 1-10
NTNU Untitled
 
27 Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(2)
NTNU Untitled
 
28 Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak.
Signature analysis of characteristic frequencies in a Francis turbine. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240.(7)
NTNU Untitled
 
29 Trivedi, Chirag; Dahlhaug, Ole Gunnar.
A comprehensive review of verification and validation techniques applied to hydraulic turbines. International Journal of Fluid Machinery and Systems 2019 ;Volume 12.(4) p. 345-367
NTNU Untitled
 
30 Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian.
Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series (JPCS) 2019 ;Volume 1296.(1) p. 1-7
NTNU Untitled
 
31 Vereide, Kaspar; Lia, Leif; Dahlhaug, Ole Gunnar; Mo, Birger; Nysveen, Arne; Forseth, Torbjørn.
Research on Extreme Upgrading of Existing Hydropower Systems. Hydro2019; 2019-10-14 - 2019-10-16
ENERGISINT NINA NTNU Untitled
 
32 Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os.
Study of flow structure in erosion prone complex geometries. IOP Conference Series: Earth and Environmental Science (EES) 2019 ;Volume 240. p. 1-9
NTNU Untitled
 
33 Østby, Petter Thorvald Krogh; Agnalt, Einar; Haugen, Bjørn; Billdal, Jan Tore; Dahlhaug, Ole Gunnar.
Fluid structure interaction of Francis-99 turbine and experimental validation. Journal of Physics: Conference Series (JPCS) 2019 ;Volume 1296.(1) p. 1-11
NTNU Untitled
 
2018
34 Agnalt, Einar; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
Onboard measurements of pressure pulsations in a high head Francis model runner. 29th Symposium on Hydraulic Machinery and Systems; 2018-09-16 - 2018-09-21
NTNU Untitled
 
35 Agnalt, Einar; Østby, Petter Thorvald Krogh; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance. Shock and Vibration 2018 ;Volume 2018. p. -
NTNU Untitled
 
36 Bergan, Carl Werdelin; Solemslie, Bjørn Winther; Østby, Petter Thorvald Haug; Dahlhaug, Ole Gunnar.
Hydrodynamic Damping of a Fluttering Hydrofoil in High-speed Flows. International Journal of Fluid Machinery and Systems 2018 ;Volume 11.(2) p. 146-153
NTNU Untitled
 
37 Bergan, Carl Werdelin; Tengs, Erik Os; Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
An Experimental Investigation of the Hydroynamic Damping of Vibrating Hydrofoils. 29th Symposium on Hydraulic Machinery and Systems; 2018-09-16 - 2018-09-21
NTNU Untitled
 
38 Chitrakar, Sailesh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad.
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 2018 ;Volume 12.(1) p. 662-678
NTNU Untitled
 
39 Dahlhaug, Ole Gunnar.
Hydropower’s unique flexibility. Current Research in Hydraulic Turbines (CRHT-VIII-2018); 2018-03-20 - 2018-03-20
NTNU Untitled
 
40 Dahlhaug, Ole Gunnar.
Model test of hydro turbines. Advancement in turbine and hydropower technology; 2018-03-21 - 2018-03-21
NTNU Untitled
 
41 Dahlhaug, Ole Gunnar; Holst, Martin a.; Fjærvold, Kjell-Tore.
Høytrykks Francishjul som ikke sprekker. Produksjonsteknisk Konferanse, PTK 2018; 2018-03-05 - 2018-03-07
NTNU Untitled
 
42 Iliev, Igor; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Variable-speed operation and pressure pulsations in a Francis turbine and a pump-turbine. Symposium on Hydraulic Machinery and Systems, IAHR-2018; 2018-09-16 - 2018-09-21
NTNU Untitled
 
43 Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Simplified hydrodynamic analysis on the general shape of the hill charts of Francis turbines using shroud-streamline modeling. Journal of Physics: Conference Series (JPCS) 2018 ;Volume 1042.(1) p. 1-9
NTNU Untitled
 
44 Sannes, Daniel B.; Iliev, Igor; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Pressure Pulsation in a High Head Francis Turbine Operating at Variable Speed. Journal of Physics: Conference Series (JPCS) 2018 ;Volume 1042.(1) p. 1-10
NTNU Untitled
 
45 Selvig, M. J.; Dahlhaug, Ole Gunnar; Trivedi, Chirag.
Pressure pulsations in high head Francis turbines. Current Research in Hydraulic Turbines; 2018-03-20 - 2018-03-20
NTNU Untitled
 
46 Shrestha, K.P.; Chitrakar, Sailesh; Thapa, Bhola; Dahlhaug, Ole Gunnar.
Performance Comparison of Optimized Designs of Francis Turbines Exposed to Sediment Erosion in various Operating Conditions. Journal of Physics: Conference Series (JPCS) 2018 ;Volume 1042.(1) p. 1-10
NTNU Untitled
 
47 Siemonsmeier, Marius; Baumanns, Philipp; van Bracht, Niklas; Schönefeld, Maik; Schönbauer, Andrea; Moser, Albert; Dahlhaug, Ole Gunnar; Heidenreich, Sara.
Hydropower Providing Flexibility for a Renewable Energy System: Three European Energy Scenarios. Trondheim: HydroFlex 2018 79 p.
NTNU Untitled
 
48 Silva, Ana T.; Dahlhaug, Ole Gunnar.
Fish and turbines – same, same but different?. Fagdag for Forskere i HydroCen; 2018-10-24 - 2018-10-24
NINA NTNU Untitled
 
49 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
A Reference Pelton Turbine - Three-Dimensional Flow Front Tracking Within a Rotating Pelton Bucket. Journal of Fluids Engineering - Trancactions of The ASME 2018 ;Volume 140.(12) p. 1-8
NTNU Untitled
 
50 Solemslie, Bjørn Winther; Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Pressure Pulsations and Fatigue Loads in High Head Francis Turbines. 29th Symposium on Hydraulic Machinery and Systems; 2018-09-16 - 2018-09-21
NTNU Untitled
 
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