不可压缩流动的移动粒子半隐式法数值模拟

Simulation for Incompressible Flow with Moving Particle Semi-implicit Method

介绍了一种新的移动粒子半隐式方法。该方法采用Lagrange描述,用一系列离散粒子代替流体,通过半隐式求解和时间推进法来进行计算,弥补了传统网格法对复杂形状、大变形、高速撞击等情况下网格划分和重构过于繁琐的缺点,在模拟不可压缩流动问题中得到了较好的效果。

The Moving Particle Semi-implicit Method is introduced,where Fluid is described by a set of discrete particles in Lagrange description,and the semi-implicit equation is solved on every time step.Some disadvantages of the traditional mesh methods are made up,such as complexities of creating and re-creating mesh in the case of complex shape,large distortion or high speed crash.The method enables to simulate incompressible flow perfectly.