Development of Numerical Simulation Method for Compressible Gas-Liquid Two-Phase Flows

9th International Symposium on Cavitation

Tamura, Y.^1

Information Sciences and Arts/Center for Computational Mechanics Research, Toyo University, Kujirai 2100, Kawagoe

350-8585, Japan^1

关键词: Cavitation bubble;    Compressible gas;    Equation of state;    Governing equations;    Internal energies;    Level Set method;    Numerical simulation method;    Thermodynamic state;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/656/1/012141/pdf
DOI  :  10.1088/1742-6596/656/1/012141

来源: IOP

【 摘 要 】

A numerical simulation method of compressible gas-liquid two-phase flow is developed for analyses of a cavitation bubble. Thermodynamic state of both phases is described with stiffened gas equation of state. Interface of two phases is captured by Level-Set method. As internal energy jump between two phases is critical for the stability of computation, total energy equation is modified so that inviscid flux of energy is smoothly connected across the interface. Detail of governing equations as well as their discretization is described followed by the result of one-dimensional simple example computation.