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François Avellan
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Journal Articles

Evaluation of a Dynamic Transfer Matrix for a Hydraulic Turbine

Keita Yamamoto, Koichi Yonezawa, Andres Müller, François Avellan, Yoshinobu Tsujimoto
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. April 2020, 142(4): 041204.
Paper No: FE-19-1526
https://doi.org/10.1115/1.4045437
Published Online: January 24, 2020
View Article titled, Evaluation of a Dynamic Transfer Matrix for a Hydraulic Turbine
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Topics: Cavitation, Flow (Dynamics), Pressure, Stress, Hydraulic turbines, Excitation, Stability, Fluctuations (Physics)
Journal Articles

Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine

Keita Yamamoto, Andres Müller, Arthur Favrel, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2019, 141(11): 111113.
Paper No: FE-19-1053
https://doi.org/10.1115/1.4043989
Published Online: July 12, 2019
View Article titled, Physical Mechanism of Interblade Vortex Development at Deep Part Load Operation of a Francis Turbine
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Topics: Blades, Flow (Dynamics), Stress, Vortices, Energy dissipation, Flow separation, Francis turbines, Pressure, Computer simulation, Cavitation
Journal Articles

Optimal Control of Part Load Vortex Rope in Francis Turbines

Simon Pasche, François Avellan, François Gallaire
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. August 2019, 141(8): 081203.
Paper No: FE-18-1425
https://doi.org/10.1115/1.4042560
Published Online: February 13, 2019
View Article titled, Optimal Control of Part Load Vortex Rope in Francis Turbines
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Topics: Eigenvalues, Flow (Dynamics), Francis turbines, Optimal control, Ropes, Stress, Vortices, Pressure, Turbulence
eBook Chapter

Air-Water Ring in the Vaneless Gap of a Reversible Pump-Turbine Operating in Condenser Mode

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2018
ISBN: 9780791861851
Open the PDF for Air-Water Ring in the Vaneless Gap of a Reversible Pump-Turbine Operating in Condenser Mode in another window
Topics: Condensers (steam plant), Pump turbines, Water
eBook Chapter

Measurements of Cavitation Compliance in the Draft Tube Cone of a Reduced Scale Francis Turbine Operating at Part Load

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2018
ISBN: 9780791861851
Open the PDF for Measurements of Cavitation Compliance in the Draft Tube Cone of a Reduced Scale Francis Turbine Operating at Part Load in another window
Topics: Cavitation, Francis turbines, Stress
Journal Articles

On the Efficiency Alteration Mechanisms Due to Cavitation in Kaplan Turbines

Sebastián Leguizamón, Claire Ségoufin, Phan Hai-Trieu, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2017, 139(6): 061301.
Paper No: FE-15-1811
https://doi.org/10.1115/1.4035928
Published Online: April 5, 2017
View Article titled, On the Efficiency Alteration Mechanisms Due to Cavitation in Kaplan Turbines
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Topics: Blades, Cavitation, Pressure, Energy dissipation, Kaplan turbines, Turbulence, Flow (Dynamics)
Journal Articles

Part Load Vortex Rope as a Global Unstable Mode

Simon Pasche, François Avellan, François Gallaire
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2017, 139(5): 051102.
Paper No: FE-16-1160
https://doi.org/10.1115/1.4035640
Published Online: March 16, 2017
View Article titled, Part Load Vortex Rope as a Global Unstable Mode
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Topics: Flow (Dynamics), Ropes, Stability, Turbulence, Vortices, Stress, Flow simulation
Journal Articles

Large Eddy Simulation of the Rotating Stall in a Pump-Turbine Operated in Pumping Mode at a Part-Load Condition

Olivier Pacot, Chisachi Kato, Yang Guo, Yoshinobu Yamade, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2016, 138(11): 111102.
Paper No: FE-15-1803
https://doi.org/10.1115/1.4033423
Published Online: July 15, 2016
View Article titled, Large Eddy Simulation of the Rotating Stall in a Pump-Turbine Operated in Pumping Mode at a Part-Load Condition
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Topics: Computation, Diffusers, Flow (Dynamics), Fluctuations (Physics), Guide vanes, Impellers, Large eddy simulation, Pressure, Pump turbines, Reynolds number
Journal Articles

Measurement of the Self-Oscillating Vortex Rope Dynamics for Hydroacoustic Stability Analysis

Andres Müller, Keita Yamamoto, Sébastien Alligné, Koichi Yonezawa, Yoshinobu Tsujimoto, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2016, 138(2): 021206.
Paper No: FE-14-1721
https://doi.org/10.1115/1.4031778
Published Online: November 4, 2015
View Article titled, Measurement of the Self-Oscillating Vortex Rope Dynamics for Hydroacoustic Stability Analysis
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Topics: Pressure, Ropes, Stability, Vortices, Cavitation, Fluctuations (Physics), Flow (Dynamics), Flow visualization, Dynamics (Mechanics), Cavities
Journal Articles

Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method

Christian Vessaz, Ebrahim Jahanbakhsh, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Briefs
J. Fluids Eng. July 2015, 137(7): 074501.
Paper No: FE-14-1599
https://doi.org/10.1115/1.4029839
Published Online: July 1, 2015
View Article titled, Flow Simulation of Jet Deviation by Rotating Pelton Buckets Using Finite Volume Particle Method
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Topics: Flow (Dynamics), Particulate matter, Pressure, Simulation, Water, Flow simulation
Journal Articles

The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil

Philippe Ausoni, Amirreza Zobeiri, François Avellan, Mohamed Farhat
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Fundamental Issues And Canonical Flows
J. Fluids Eng. May 2012, 134(5): 051207.
https://doi.org/10.1115/1.4006700
Published Online: May 22, 2012
View Article titled, The Effects of a Tripped Turbulent Boundary Layer on Vortex Shedding from a Blunt Trailing Edge Hydrofoil
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Topics: Boundary layers, Fluctuations (Physics), Hydrofoil, Vortex shedding, Vortices, Wakes, Flow (Dynamics), Boundary layer turbulence, Vibration, Turbulence
Journal Articles

Experimental Evidence of Rotating Stall in a Pump-Turbine at Off-Design Conditions in Generating Mode

Vlad Hasmatuchi, Mohamed Farhat, Steven Roth, Francisco Botero, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2011, 133(5): 051104.
https://doi.org/10.1115/1.4004088
Published Online: June 7, 2011
View Article titled, Experimental Evidence of Rotating Stall in a Pump-Turbine at Off-Design Conditions in Generating Mode
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Topics: Bubbles, Design, Emission spectroscopy, Flow (Dynamics), Flow separation, Flow visualization, Fluctuations (Physics), Guide vanes, Impellers, Pressure
Proceedings Papers

Advanced Instrumentation for Measuring Fluid-Structure Coupling Phenomena in the Guide Vanes Cascade of a Pump-Turbine Scale Model

Steven Roth, Vlad Hasmatuchi, Francisco Botero, Mohamed Farhat, Francois Avellan
Proc. ASME. FEDSM2010, ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B, 585-597, August 1–5, 2010
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM-ICNMM2010-30693
https://doi.org/10.1115/FEDSM-ICNMM2010-30693
View Paper titled, Advanced Instrumentation for Measuring Fluid-Structure Coupling Phenomena in the Guide Vanes Cascade of a Pump-Turbine Scale Model
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Topics: Cascades (Fluid dynamics), Fluids, Guide vanes, Instrumentation, Pump turbines, Excitation, Flow (Dynamics), Impulse (Physics), Laser Doppler vibrometers, Pressure sensors
Proceedings Papers

Experimental Investigation of Flow Instabilities and Rotating Stall in a High-Energy Centrifugal Pump Stage

Stefan Berten, Philippe Dupont, Laurent Fabre, Maher Kayal, Francois Avellan, Mohamed Farhat
Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 505-513, August 2–6, 2009
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2009-78562
https://doi.org/10.1115/FEDSM2009-78562
View Paper titled, Experimental Investigation of Flow Instabilities and Rotating Stall in a High-Energy Centrifugal Pump Stage
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Topics: Centrifugal pumps, Flow instability, Pressure, Impellers, Fluctuations (Physics), Diffusers, Pumps, Blades, Data acquisition systems, Design
Journal Articles

Analysis and Prevention of Vortex Breakdown in the Simplified Discharge Cone of a Francis Turbine

Romeo Susan-Resiga, Sebastian Muntean, Vlad Hasmatuchi, Ioan Anton, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2010, 132(5): 051102.
https://doi.org/10.1115/1.4001486
Published Online: April 27, 2010
View Article titled, Analysis and Prevention of Vortex Breakdown in the Simplified Discharge Cone of a Francis Turbine
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Topics: Diffusers, Flow (Dynamics), Francis turbines, Kinetic energy, Pressure, Swirling flow, Turbines, Turbulence, Vortices, Stress
Journal Articles

Experimental Evidence of Hydroacoustic Pressure Waves in a Francis Turbine Elbow Draft Tube for Low Discharge Conditions

Jorge Arpe, Christophe Nicolet, François Avellan
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2009, 131(8): 081102.
https://doi.org/10.1115/1.3155944
Published Online: July 8, 2009
View Article titled, Experimental Evidence of Hydroacoustic Pressure Waves in a Francis Turbine Elbow Draft Tube for Low Discharge Conditions
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Topics: Fluctuations (Physics), Pressure, Vortices, Waves, Francis turbines, Cavitation
Proceedings Papers

Rotor-Stator Interaction Induced Pressure Fluctuations: CFD and Hydroacoustic Simulations in the Stationary Components of a Multistage Centrifugal Pump

Stefan Berten, Philippe Dupont, Mohamed Farhat, Francois Avellan
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 963-970, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37549
https://doi.org/10.1115/FEDSM2007-37549
View Paper titled, Rotor-Stator Interaction Induced Pressure Fluctuations: CFD and Hydroacoustic Simulations in the Stationary Components of a Multistage Centrifugal Pump
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Topics: Centrifugal pumps, Computational fluid dynamics, Fluctuations (Physics), Pressure, Rotors, Simulation, Stators, Oscillations, Pumps, Acoustics
Proceedings Papers

Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump

Olivier Braun, Francois Avellan, Philippe Dupont
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 971-977, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37550
https://doi.org/10.1115/FEDSM2007-37550
View Paper titled, Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump
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Topics: Computer simulation, Flow (Dynamics), Suction pumps, Impellers, Diffusers, Blades, Design, Centrifugal pumps, Damping, Flow simulation
Proceedings Papers

One-Dimensional Analysis of Full Load Draft Tube Surge

Changkun Chen, Christophe Nicolet, Koichi Yonezawa, Mohamed Farhat, Francois Avellan, Yoshinobu Tsujimoto
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 391-396, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37304
https://doi.org/10.1115/FEDSM2007-37304
View Paper titled, One-Dimensional Analysis of Full Load Draft Tube Surge
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Topics: Stress, Surges, Flow (Dynamics), Pressure, Diffusers, Cavities, Centrifugal force, Hydraulic drive systems, Stability, Swirling flow
Journal Articles

One-Dimensional Analysis of Full Load Draft Tube Surge

Changkun Chen, Christophe Nicolet, Koichi Yonezawa, Mohamed Farhat, Francois Avellan, Yoshinobu Tsujimoto
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. April 2008, 130(4): 041106.
https://doi.org/10.1115/1.2903475
Published Online: April 14, 2008
View Article titled, One-Dimensional Analysis of Full Load Draft Tube Surge
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Topics: Diffusers, Flow (Dynamics), Stress, Surges, Pressure, Cavities, Hydraulic drive systems, Swirling flow