Identification of the wave speed and the second viscosity of cavitation flows with 2D RANS computations - Part I

1D hydro-electric models are useful to predict dynamic behaviour of hydro-power plants. Regarding vortex rope and cavitation surge in Francis turbines, the 1D models require some inputs that can be provided by numerical simulations. In this paper, a 2D cavitating Venturi is considered. URANS computations are performed to investigate the dynamic behaviour of the cavitation sheet depending on the frequency variation of the outlet pressure. The results are used to calibrate and to assess the reliability of the 1D models.


Published in:
9th International Symposium on Cavitation (Cav2015), 656, 012060
Presented at:
9th International Symposium on Cavitation (CAV2015), Lausanne, Switzerland, December 6-10, 2015
Year:
2015
Publisher:
Bristol, Iop Publishing Ltd
ISSN:
1742-6588
Laboratories:




 Record created 2016-02-16, last modified 2018-01-28


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