Level Set方法和多介质可压缩流

多介质可压缩流问题计算的关键是如何精确的捕获不同时刻物质界面的位置,从而将多介质问题分解成多个单介质问题去处理.Level Set方法的优点是不用显示的追踪物质界面,而用距离函数就能精确定位界面.同时,用Level Set方法追踪界面运动易于处理界面拓扑结构的变化、易于处理大变形问题.本文成功地将Level Set方法应用在二维多介质可压缩流计算.

Level Set Method and computation of compressible multi-fluid flows

It is a key for the problems of compressible multi-materials to capture accurately the position of material interfaces at different times.Thereby the problems of compressible multi-materials can be spitted into several single-material problems.Level Set Method using the Level Set function to keep track of the interface motion,automatically handles the interface that undergoes topological changes,the brief Method has another advantage of handling the large deformation problem easily.In this paper,level set m...