A comparative study of cavitation models in a Venturi flow

Boris Charrière (1) , Jean Decaix (2) , Eric Goncalves da Silva (3, 1)

1 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]
2 University of Applied Sciences Western Switzerland
3 PPrime [Poitiers] - Institut Pprime [UPR 3346]

This paper presents a numerical study of an aperiodic cavitation pocket developing in a Venturi flow. The mass transfer between phases is driven by a void ratio transport equation model. A new free-parameter closure relation is proposed and compared with other formulations. The re-entrant jet development, void ratio profiles and pressure fluctuations are analysed to discern results accuracy. Comparisons with available experimental data are done and good agreement is achieved.

Mots clés: Homogeneous model; Mass transfer; Cavitation; RANS simulation

Domaines: Mécanique des fluides [physics.class-ph]

Boris Charrière, Jean Decaix, Eric Goncalves da Silva. A comparative study of cavitation models in a Venturi flow. European Journal of Mechanics - B/Fluids, 2015, 49, p287-297. ⟨10.1016/j.euromechflu.2014.10.003⟩. ⟨hal-01084572⟩