D313 A Preconditioning Method for Gas-Liquid Two-Phase Flows

概要

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A preconditioned numerical method for gas-liquid two-phase flows is applied to solve cavitating flow. The present method employs a finite-difference Runge-Kutta method and Roe's flux difference splitting approximation with TVD MUSCL scheme. A homogeneous equilibrium cavitation model is used. The present method permits simple treatment of the whole gas-liquid two-phase flow field including wave propagation, large density changes and incompressible flow characteristics at low Mach number. By this method, two-dimensional internal flows through a backward-facing step duct and a venturi tube are computed. Comparisons of predicted results with experiments are provided and discussed.
日本流体力学会の論文
2002-07-23