基于网格的流体界面追踪方法分析与改进  

Analysis and Improvement of Fluid Front-tracing Method Based on Grid

作　　者：谢安兵[1] 汪继文[1] 

机构地区：[1]安徽大学计算智能与信号处理教育部重点实验室,安徽合肥230039

出　　处：《计算机与现代化》2010年第2期80-83,共4页Computer and Modernization

基　　金：安徽省高校自然科学研究资助项目(2006KJ028B)

摘　　要：对于流体运动,需要去求解其自由表面,才能将其与周围的环境分开,目前许多人都对界面追踪进行了相关研究,并提出了许多方法,其中早期的主要有PIC法、MAC法和VOF法等。Level Set方法可以有效地实现动态的界面,并且对计算机图形学的研究起到关键的作用,但是Level Set方法对界面的尖角部分会有较强的抹平效应。Particle Level Set方法是在Level Set方法的基础上,在界面附近引入示踪粒子,从而可以弥补这一缺陷。本文分别介绍这几种方法,并提出一些改进与几种方法的综合应用。For fluid movement, we need to solve the free surface which can be separated with their surrounding environment, many people carry out some studies on the interface tracking, and put forward many methods, which are mainly PIC method, MAC method and VOF method early. Level Set method is very effective for representing dynamic surfaces and is crucial to recent research within computer graphics. However, it smears out the sharp interface. Particle Level Set method is put forward base on the Level Set method, then places some particles near the surface, so it can remedy this default. The paper introduces these methods respectively, then puts forward some improvements and the application of these methods combined together.

关 键 词：LEVEL SET PARTICLE LEVEL SET 界面追踪 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]