A robust algorithm for moving interface of multi-material fluids based on Riemann solutions

• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2006,（6）
• 页码范围: 509-519
• 页数: 11页
• 语种: 英文

摘要

In the paper,the numerical simulation of interface problems for multiple material fluids is studied.The level set function is designed to capture the location of the material interface.For multi-dimensional and multi-material fluids,the modified ghost fluid method needs a Riemann solution to renew the variable states near the interface.Here we present a new convenient and effective algorithm for solving the Riemann problem in the normal direction.The extrapolated variables are populated by Taylor series expansions in the direction.The anti-diffusive high order WENO difference scheme with the limiter is adopted for the numerical simulation.Finally we implement a series of numerical experiments of multi-material flows.The obtained results are satisfying,compared to those by other methods.