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Viser treff 1-50 av 193 << Forrige 1 2 3 4    Neste >>

2019
1 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 2019 ;Volum 1266.(012004)
NTNU Untitled
 
2 Agnalt, Einar.
Rotor-Stator Interaction in low-specific speed Francis Turbines. Trondheim: NTNU 2019 172 s.
NTNU Untitled
 
3 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 ;Volum 2019. s. -
NTNU Untitled
 
4 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 ;Volum 240.(2) s. 1-10
NTNU Untitled
 
5 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 ;Volum 240.(6) s. 1-10
NTNU Untitled
 
6 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 2019 ;Volum 1296.(1) s. 1-12
NTNU Untitled
 
7 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 ;Volum 70. s. -
NTNU Untitled
 
8 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 ;Volum 240. s. -
NTNU Untitled
 
9 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 ;Volum 240.
NTNU Untitled
 
10 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 ;Volum 103. s. 109-121
NTNU Untitled
 
11 Nordvik, Andreas; Iliev, Igor; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Numerical prediction of hill charts of Francis turbines. Journal of Physics: Conference Series 2019 ;Volum 1266.(1) s. 1-10
NTNU Untitled
 
12 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 ;Volum 240.(2)
NTNU Untitled
 
13 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 ;Volum 240.(7)
NTNU Untitled
 
14 Trivedi, Chirag; Dahlhaug, Ole Gunnar; Storli, Pål-Tore Selbo; Nielsen, Torbjørn Kristian.
Francis-99 Workshop 3: Fluid structure interaction. Journal of Physics: Conference Series 2019 ;Volum 1296.(1) s. 1-7
NTNU Untitled
 
15 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
 
16 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 ;Volum 240. s. 1-9
NTNU Untitled
 
17 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 2019 ;Volum 1296.(1) s. 1-11
NTNU Untitled
 
2018
18 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
 
19 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 ;Volum 2018. s. -
NTNU Untitled
 
20 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 ;Volum 11.(2) s. 146-153
NTNU Untitled
 
21 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
 
22 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 ;Volum 12.(1) s. 662-678
NTNU Untitled
 
23 Dahlhaug, Ole Gunnar.
Hydropower’s unique flexibility. Current Research in Hydraulic Turbines (CRHT-VIII-2018); 2018-03-20 - 2018-03-20
NTNU Untitled
 
24 Dahlhaug, Ole Gunnar.
Model test of hydro turbines. Advancement in turbine and hydropower technology; 2018-03-21 - 2018-03-21
NTNU Untitled
 
25 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
 
26 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
 
27 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 2018 ;Volum 1042.(1) s. 1-9
NTNU Untitled
 
28 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 2018 ;Volum 1042.(1) s. 1-10
NTNU Untitled
 
29 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
 
30 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 2018 ;Volum 1042.(1) s. 1-10
NTNU Untitled
 
31 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 s.
NTNU Untitled
 
32 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
 
33 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 ;Volum 140.(12) s. 1-8
NTNU Untitled
 
34 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
 
35 Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Flow measurements around guide vanes of Francis turbine: A PIV approach. Renewable Energy 2018 ;Volum 126. s. 177-188
NTNU Untitled
 
36 Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Experimental investigation of a Francis turbine during exigent ramping and transition into total load rejection. Journal of Hydraulic Engineering 2018 ;Volum 144.(6) s. -
NTNU Untitled
 
37 Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Experimental study of a Francis turbine under variable-speed and discharge conditions. Renewable Energy 2018 ;Volum 119. s. 447-458
NTNU Untitled
 
38 Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar; Brandåstrø, Bård Aslak.
Signature analysis of characteristic frequencies in a Francis turbine. Symposium on Hydraulic Machinery and Systems, IAHR-2018; 2018-09-16 - 2018-09-21
NTNU Untitled
 
39 Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Interaction between trailing edge wake and vortex rings in a Francis turbine at runaway condition: Compressible large eddy simulation. Physics of Fluids 2018 ;Volum 30.(7) s. -
NTNU Untitled
 
40 Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar.
Investigation of the Unsteady Pressure Pulsations in the Prototype Francis Turbines -Part 1: Steady State Operating Conditions. Mechanical systems and signal processing 2018 ;Volum 108.(8) s. 188-202
NTNU Untitled
 
41 Ulvan, Vegard S.; Kverno, Johannes O.; Dahlhaug, Ole Gunnar.
Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics: Conference Series 2018 ;Volum 1042.(1) s. 1-10
NTNU Untitled
 
42 Volent, Eirik; Dahlhaug, Ole Gunnar.
Literature review relevant to particle erosion in complex geometries. Journal of Physics: Conference Series 2018 ;Volum 1042. s. -
NTNU Untitled
 
43 Volent, Eirik; Dahlhaug, Ole Gunnar; Tengs, Erik Os.
Study of flow structure in erosion prone complex geometries. 29th IAHR Symposium on Hydraulic Machinery and Systems; 2018-09-16 - 2018-09-21
NTNU Untitled
 
2017
44 Cervantes, Michel; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian.
Francis-99 Workshop 2: transient operation of Francis turbines. Journal of Physics: Conference Series 2017 ;Volum 782.(1)
NTNU Untitled
 
45 Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Particle Image Velocimetry Investigation of the Leakage Flow Through Clearance Gaps in Cambered Hydrofoils. Journal of Fluids Engineering - Trancactions of The ASME 2017 ;Volum 139.(9) s. -
NTNU Untitled
 
46 Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad.
Numerical and experimental study of the leakage flow in guide vanes with different hydrofoils. Journal of Computational Design and Engineering 2017 ;Volum 6.(2) s. 218-230
NTNU Untitled
 
47 Dahlhaug, Ole Gunnar.
Norsk vannkraft kan utnyttes bedre. Adresseavisen 2017 s. -
NTNU Untitled
 
48 Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar.
Experimental investigation of air injection in high head Francis turbines. International journal on hydropower and dams 2017 ;Volum 24. s. 70-74
NTNU Untitled
 
49 Gong, Ruzhi; Trivedi, Chirag; Dahlhaug, Ole Gunnar; Nielsen, Torbjørn Kristian.
Blade passage modeling strategy for hydraulic turbine. International Journal of Fluid Machinery and Systems 2017 ;Volum 10.(4) s. 345-354
NTNU Untitled
 
50 Leonhardsen, Sondre; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Numerical Investigation of Flow Field subject to Vibrating structure. International Symposium on Current Research in Hydraulic Turbines; 2017-04-04 - 2017-04-04
NTNU Untitled
 
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