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Viser treff 1-50 av 176 << Forrige 1 2 3 4    Neste >>

2018
1 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
 
2 Dahlhaug, Ole Gunnar.
Hydropower’s unique flexibility. Current Research in Hydraulic Turbines (CRHT-VIII-2018); 2018-03-20 - 2018-03-20
NTNU Untitled
 
3 Dahlhaug, Ole Gunnar.
Model test of hydro turbines. Advancement in turbine and hydropower technology; 2018-03-21 - 2018-03-21
NTNU Untitled
 
4 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
 
5 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. -
NTNU Untitled
 
6 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. s. -
NTNU Untitled
 
7 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
 
8 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. s. -
NTNU Untitled
 
9 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
A reference Pelton turbine - 3D Flow front tracking within a rotating Pelton bucket. Journal of Fluids Engineering - Trancactions of The ASME 2018
NTNU Untitled
 
10 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
 
11 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
 
12 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
 
13 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
 
14 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
 
15 Ulvan, Vegard; Kverno, Johannes; Dahlhaug, Ole Gunnar.
Pressure pulsations and hydraulic efficiency at Smeland power plant. Journal of Physics, Conference Series 2018 ;Volum 1042. s. -
NTNU Untitled
 
16 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
 
2017
17 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
 
18 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
 
19 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
 
20 Dahlhaug, Ole Gunnar.
Norsk vannkraft kan utnyttes bedre. Adresseavisen 2017 s. -
NTNU Untitled
 
21 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
 
22 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
 
23 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
 
24 Nysveen, Arne; Dahlhaug, Ole Gunnar.
Bruk av variabelt turtall i norske kraftverk. Elektrisk utrustning og nettintegrasjon Turbinteknologi. Produksjonsteknisk konferanse (PTK 2017); 2017-03-06 - 2017-03-08
NTNU Untitled
 
25 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar; Dagsvik, Helene Njølstad.
Pågående forskningsaktivitet ved Vannkraftlaboratoriet. Peltonturbiner, Pumpeturbiner, Francisturbiner og andre eksterne oppdrag.. Bransjebesøk på Vannkraftlaboratoriet; 2017-12-08 - 2017-12-08
NTNU Untitled
 
26 Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Effects of sediment erosion in guide vanes of Francis turbine. Wear 2017 ;Volum 390-391. s. 104-112
NTNU Untitled
 
27 Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Sediment erosion induced leakage flow from guide vane clearance gap in a low specific speed Francis turbine. Renewable Energy 2017 ;Volum 107. s. 253-261
NTNU Untitled
 
28 Trivedi, Chirag; Agnalt, Einar; Dahlhaug, Ole Gunnar.
Investigations of unsteady pressure loading in a Francis turbine during variable-speed operation. Renewable Energy 2017 ;Volum 113. s. 397-410
NTNU Untitled
 
29 Trivedi, Chirag; Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar.
Investigation of the unsteady pressure pulsations in the prototype Francis turbines during load variation and startup. Journal of Renewable and Sustainable Energy 2017 ;Volum 9.(6) s. -
NTNU Untitled
 
30 Østby, Petter Thorvald Haug; Billdal, Jan Tore; Haugen, Bjørn; Dahlhaug, Ole Gunnar.
On the relation between friction losses and pressure pulsations caused by Rotor Stator interaction on the Francis-99 turbine. Journal of Physics, Conference Series 2017 ;Volum 782.(1) s. -
NTNU Untitled
 
2016
31 Bergan, Carl Werdelin; Goyal, Rahul; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU Untitled
 
32 Bergan, Carl Werdelin; Goyal, Rahul; Dahlhaug, Ole Gunnar; Cervantes, Michel.
Steady velocity and pressure measurements of a high-head Francis model turbine. 28th IAHR symposium on Hydraulic Machinery and Systems; 2016-07-04 - 2016-07-08
NTNU Untitled
 
33 Brende, Hege; Dahlhaug, Ole Gunnar; Bruland, Oddbjørn; Helland, Ingeborg Palm.
Vannkraft er det nye blå gullet for Norge. Aftenposten (morgenutg. : trykt utg.) 2016
ENERGISINT NINA NTNU Untitled
 
34 Chitrakar, Sailesh; Neopane, Hari Prasad; Dahlhaug, Ole Gunnar.
Study of the simultaneous effects of secondary flow and sediment erosion in Francis turbines. Renewable Energy 2016 ;Volum 97. s. 881-891
NTNU Untitled
 
35 Chitrakar, Sailesh; Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Neopane, Hari Prasad.
Numerical investigation of the flow phenomena around a low specific speed Francis turbine’s guide vane cascade. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU Untitled
 
36 Dahlhaug, Ole Gunnar.
Development of global hydropower, the Norwegian perspective. 6th International symposium on Current Research in Hydraulic Turbines; 2016-03-14 - 2016-03-14
NTNU Untitled
 
37 Dahlhaug, Ole Gunnar.
Vannkraftens renessanse. Adresseavisen 2016
NTNU Untitled
 
38 Dahlhaug, Ole Gunnar.
Vannkraftens rennessanse. Adresseavisen 2016
NTNU Untitled
 
39 Gogstad, Peter Joachim; Dahlhaug, Ole Gunnar.
Evaluation of runner cone extension to dampen pressure pulsations in a Francis model turbine. IOP Conference Series: Earth and Environment 2016 ;Volum 49.(8) s. -
NTNU Untitled
 
40 Goyal, Rahul; Bergan, Carl Werdelin; Cervantes, Michel; Gandhi, B. K.; Dahlhaug, Ole Gunnar.
Experimental investigation on a high head model Francis turbine during load rejection. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU Untitled
 
41 Goyal, Rahul; Trivedi, Chirag; Gandhi, BK; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Transient pressure measurements at part load operating condition of a high head model Francis turbine. Sadhana (Bangalore) 2016 ;Volum 41.(11) s. -
NTNU Untitled
 
42 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
A reference Pelton turbine - High speed visualization in the rotating frame. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU Untitled
 
43 Solemslie, Bjørn Winther; Dahlhaug, Ole Gunnar.
A reference Pelton turbine - High speed visualization in the rotating frame. 28th IAHR symposium on Hydraulic Machinery and Systems; 2016-07-04 - 2016-07-08
NTNU Untitled
 
44 Solemslie, Bjørn Winther.
Experimental methods and design of a Pelton bucket. Trondheim: NTNU 2016 (ISBN 978-82-326-0860-7) 167 s. Doktoravhandlinger ved NTNU(2016:01)
NTNU Untitled
 
45 Thapa, Biraj Singh.
Effects of sediment erosion in guide vanes of Francis turbines. Trondheim: Skipnes Kommunikasjon as 2016 (ISBN 978-82-326-1859-0) 205 s.
NTNU Untitled
 
46 Thapa, Biraj Singh; Dahlhaug, Ole Gunnar; Thapa, Bhola.
Velocity and pressure measurements in guide vane clearance gap of a low specific speed Francis turbine. IOP Conference Series: Earth and Environment 2016 ;Volum 49. s. -
NTNU Untitled
 
47 Thapa, Biraj Singh; Trivedi, Chirag; Dahlhaug, Ole Gunnar.
Design and development of guide vane cascade for a low speed number Francis turbine. Journal of Hydrodynamics 2016 ;Volum 28.(4) s. 676-689
NTNU Untitled
 
48 Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Experimental and Numerical Studies of a High-Head Francis Turbine: A Review of the Francis-99 Test Case. Energies 2016 ;Volum 9.(2) s. 1-24
NTNU Untitled
 
49 Trivedi, Chirag; Cervantes, Michel; Dahlhaug, Ole Gunnar.
Numerical techniques applied to hydraulic turbines: a perspective review. Applied Mechanics Review 2016 ;Volum 68:010802.(1) s. -
NTNU Untitled
 
50 Østby, Petter Thorvald Haug; Billdal, Jan Tore; Sivertsen, Kjell; Haugen, Bjørn; Dahlhaug, Ole Gunnar.
Dynamic Stresses In High Head Francis Turbines. International journal on hydropower and dams 2016 ;Volum 3. s. -
NTNU Untitled
 
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