Numerical simulation of fluid flow in the presence of cavitation

Аuthors

Markina N. L.^*, Reviznikov D. L.^**

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: markina_n@list.ru
**e-mail: reviznikov@inbox.ru

Abstract

A numerical simulation approach is discussed in regard to cavitating flow. Mathematical model is based on the NavierStokes equations, supplemented with transport equation containing source terms responsible for the interphase exchange. Modified PISO algorithm is used to couple the velocity, pressure and density fields. Fluid flow through a two-dimensional variable cross-section nozzle was simulated to verify the algorithm. Comparison of computational and experimental results for various cavitating regimes is presented. Fluctuation properties of flow hydrodynamic parameters are analysed.

Keywords:

сavitation, two-phase flow, PISO, Navier-Stokes equations, numerical simulation