Level Set方法是20世纪90年代很流行的界面追踪技术,国外已有个别实例将此方法应用于不可压缩流体的计算.但其对界面具有抹圆的作用,造成梯度很大的界面失真.Particle Level Set方法可以弥补这一缺陷.在基于欧拉方法求解区域中安插了一定数量的示踪粒子，可以纠正失真效果，能够更丰富的体现流体表面的细节。-Level Set Methods 20 century 90' s are very popular interface tracking technology, for

可以将图论中的很多问题解决，比如说判断是否是连通图，是否是欧拉图等问题。-A lot of problems in graph theory can be resolved, for example, to determine whether it is a connected graph is Eulerian map.

A realtime terrain erosion & fluid simulation running on the CPU. The simulation is implemented in C++ on the CPU and parallelized using OpenMP. Rendering is done using OpenGL. We use the eulerian or grid-based approach to fluid simulation to impleme