Study of compressibility effects on turbulent cavitating flows

2012 ◽  
Author(s):  
Jean Decaix ◽  
Eric Goncalves
Keyword(s):  
Cavitating Flows ◽  
Compressibility Effects ◽  
Turbulent Cavitating Flows

Efficient implicit LES method for the simulation of turbulent cavitating flows

2016 ◽  
Vol 316 ◽  
pp. 453-469 ◽  
Author(s):  
Christian P. Egerer ◽  
Steffen J. Schmidt ◽  
Stefan Hickel ◽  
Nikolaus A. Adams
Keyword(s):  
Cavitating Flows ◽  
Turbulent Cavitating Flows

scholarly journals Evaluation of the Turbulence Model Influence on the Numerical Simulations of Unsteady Cavitation

2003 ◽  
Vol 125 (1) ◽  
pp. 38-45 ◽  
Author(s):  
O. Coutier-Delgosha ◽  
R. Fortes-Patella ◽  
J. L. Reboud
Keyword(s):  
Numerical Simulations ◽  
Stokes Equations ◽  
Simple Algorithm ◽  
Numerical Code ◽  
Navier Stokes ◽  
Finite Volume Scheme ◽  
Cavitating Flows ◽  
Two Phase ◽  
Navier Stokes Equations ◽  
Compressibility Effects

Unsteady cavitation in a Venturi-type section was simulated by two-dimensional computations of viscous, compressible, and turbulent cavitating flows. The numerical model used an implicit finite volume scheme (based on the SIMPLE algorithm) to solve Reynolds-averaged Navier-Stokes equations, associated with a barotropic vapor/liquid state law that strongly links the density variations to the pressure evolution. To simulate turbulence effects on cavitating flows, four different models were implemented (standard k-ε RNG; modified k-ε RNG; k-ω with and without compressibility effects), and numerical results obtained were compared to experimental ones. The standard models k-ε RNG and k-ω without compressibility effects lead to a poor description of the self-oscillation behavior of the cavitating flow. To improve numerical simulations by taking into account the influence of the compressibility of the two-phase medium on turbulence, two other models were implemented in the numerical code: a modified k-ε model and the k-ω model including compressibility effects. Results obtained concerning void ratio, velocity fields, and cavitation unsteady behavior were found in good agreement with experimental ones. The role of the compressibility effects on turbulent two-phase flow modeling was analyzed, and it seemed to be of primary importance in numerical simulations.

Dynamics of attached turbulent cavitating flows

2001 ◽  
Vol 37 (6) ◽  
pp. 551-581 ◽  
Author(s):  
Guoyu Wang ◽  
Inanc Senocak ◽  
Wei Shyy ◽  
Toshiaki Ikohagi ◽  
Shuliang Cao
Keyword(s):  
Cavitating Flows ◽  
Turbulent Cavitating Flows
Sign in / Sign up

Export Citation Format

Share Document