A simple and robust advection upwind flux splitting to simulate transient cavitated water-vapor flows

作者：Niu Yang Yao^*; Lin Yee Ming; Lin Yu Chin

来源：Numerical Heat Transfer Part A-Applications, 2007, 51(7): 679-696.

DOI：10.1080/10407780600939685

In this work, a pressure-velocity coupling is proposed to modify the advection flux splitting for achieving accurate simulation of cavitated bubbly flows. As we know, the resolution of interface pressure waves among multiphase flows based on compressible Eulerian schemes is still a challenging topic. The current study evaluates the numerical diffusive terms in the AUSM-type scheme and suggests a robust implementation to deal with the pressure-velocity coupling term in AUSM+. The proposed modification of AUSM+ is shown to enhance accurate resolution of phase interfaces and liquid pressure waves in unsteady cavitated shot tube problems and the calculations of external cavitated flows after comparing with validated data.

• 出版日期2007