The program for the WorkGroup

Tue, 8. October 2019

Welcome Reception

Wed, 9. October 2019

9:00 - 10:25 Cavitation
Welcome Stefan Riedelbauch
Modelling a torus cloud employing the van Wijngaarden Ansatz and the Gilmore equation Paul Taubert
Experimental investigation of the passive control of unsteady cloud cavitation using miniature vortex generators (MVGs) Ebrahim Kadivar
Vibration and acoustic emission monitoring of a centrifugal pump under cavitating operating conditions Georgios Mousmoulis
Cavitation damage detection through acoustic emissions Andreas Look
10:25 - 10:50 Coffee break
10:50 - 12:35 Vibration and Fatigue
On variations in turbine runner dynamic behaviours observed within a given facility Martin Gagnon
Hydro-structural stability investigation of a 100 MW Francis turbine based on experimental tests and numerical simulations Jean Decaix
Two-way strongly coupled fluid-structure interaction simulations with OpenFOAM Benjamin Doulcet
Operation cycle concept for the fatigue life prediction of Francis runners Florian von Locquenghien
Predicting the stress and deformation of pump-turbine’s guide vane at small opening Ran Tao
Experimental and computational investigation of fluid structure interaction of flexible tube’s dynamic properties Jan Kůrečka
12:35 - 13:45 Lunch
13:45 - 15:10 Vibration and Fatigue
Practical implications of hydraulic phenomena in Francis turbines Joe Pott
Troubleshooting of von Karman induced penstock protection valve resonance at FMHL+ Christophe Nicolet
Axial check valve behaviour during flow reversal Daniel Himr
Digital clone for penstock fatigue monitoring Matthieu Dreyer
Dynamic response analysis of powerhouse under turbine pressure pulsation with different distributions and application methods Zhenyue Ma
15:10 - 15:30 Coffee break
15:30 - 16:55 Vibration and Fatigue
Dissolved-gas influence on the Francis part-load oscillation Peter K Dörfler
Dynamic radial forces and pressure fluctuations measurement at off-design conditions on a model scale pump-turbine Vojtech Novotny
Investigation on the hydrodynamic damping using prescribed blade motion techniques Pavel Čupr
The inverse vibration problem for fixed beam submerged in fluid Michal Havlásek
Analysis of flexural vibrations of composite hydraulic microhose under the conditions of external excitation Mirosław Bocian
Event location + Dinner  

Thu, 10. October 2019

9:00 - 10:25 Plant Dynamics
Recent developments in unsteady pipe flow experimentation at the University of Montenegro Radislav Brđanin
Using DGCM to predict transient flow in plastic pipe Kamil Urbanowicz
Dynamic closing modelling of the penstock protection valve for pipe burst simulations Sébastien Alligné
Numerical study of the Winter-Kennedy method for relative transient flow rate measurement Binaya Baidar
Wall shear stress in pulsating pipe flow at resonance and non-resonance conditions Jurij Gregorc
10:25 - 10:50 Coffee break
10:50 - 12:35 Computational Fluid Dynamics
PIV measurements on a Kaplan turbine and comparison with scale-adaptive numerical analysis Johannes Beck
Study of hydrofoil boundary layer transition using different turbulence models Changliang Ye
Simulation of a shut-down transient in the Francis-99 turbine model L Uppström
Simulation of stochastic loads on a medium head Francis runner Jean-François Morissette
Analysis of a propeller turbine operated in a full load operating point Bernd Junginger
Numerical study on pressure fluctuation in a multiphase rotodynamic pump with different inlet gas
void fractions
Wenwu Zhang
12:35 - 13:45 Lunch
13:45 - 14:55 Cavitation
Numerical simulation of the tip leakage vortex cavitating flow Rui Zhang
Experimental verification of the effect of gap geometry on the tip-leakage flow pattern and tip-clearance cavitation Konstantin S. Pervunin
Cavitation erosion prediction based on a multi-scale method Lydia Plastre
Experimental and numerical analysis of cavitation and pressure fluctuations in large high head propeller turbine Matic Ocepek
14:55 - 15:25 Coffee break
15:25 - 17:20 Vortex flow, kinetic turbine
Experimental investigation of vortex ring formation as a consequence of spiral vortex re-connection David Štefan
POD analysis of a vortex rope with transient boundary conditions Ondřej Urban
Visualization of the elliptical form of a cavitation vortex rope and its collapse by two cameras Arthur Favrel
Numerical investigation of solutions to suppress the inlet vortex of an existing booster pump Jean Decaix
Cost-effective CFD simulation to predict the performance of a hydrokinetic turbine farm Olivier Pacot
Development of an adapted turbine model for hydrokinetic turbines in 2d shallow water solvers Christa Stadler
Closing Remarks Stefan Riedelbauch

Fri, 11. October 2019


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Institute of Fluid Mechanics and Hydraulic Machinery

Pfaffenwaldring 10 D, 70569 Stuttgart

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