计算物理 ›› 2015, Vol. 32 ›› Issue (1): 33-39.

• 论文 • 上一篇    下一篇

一种光滑粒子流体动力学数据的后处理方法

李付鹏1,2, 汪继文1,2, 欧莽2   

  1. 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;
    2. 安徽大学计算机科学与技术学院, 安徽 合肥 230039
  • 收稿日期:2014-01-24 修回日期:2014-06-18 出版日期:2015-01-25 发布日期:2015-01-25
  • 作者简介:李付鹏(1974-),男,安徽阜阳,博士生,从事计算流体力学、计算机流体动画模拟研究,E-mail:lifupenganda@163.com
  • 基金资助:
    安徽高校省级自然科学研究(KJ2013A009)资助项目

A Post-processing Method for Smoothed Particle Hydrodynamics Data

LI Fupeng1,2, WANG Jiwen1,2, OU Mang2   

  1. 1. Key Laboratory of Intelligent Computing & Signal Processing, Anhui University, Hefei 230039, China;
    2. Department of Computer Science and Engineering, Anhui University, Hefei 230039, China
  • Received:2014-01-24 Revised:2014-06-18 Online:2015-01-25 Published:2015-01-25

摘要: 提出一种光滑流体动力学数据后处理的三角网格化方法.首先确定流场中每个粒子作用域内的配对粒子集;再以当前粒子的配对粒子集为限定条件进行Delaunay三角剖分,可得到由粒子作为节点的三角形单元集;最后对"虚假"单元做过滤处理.算例表明复杂边界条件和严重变形的流体区域上的SPH计算结果都可用该方法处理.

关键词: 光滑粒子方法, 非凸区域, Delaunay三角化, 后处理

Abstract: A post processing method for smoothed particle hydrodynamics data is presented on basis of Delaunay triangulation.Pairing particle set in scope of each particle in flow field is confirmed,and then discretized by Delaunay triangulation on condition of present pairing particle set,which leads to a set of triangle elements with particles as nodes.At last non material units are filtered.Examples indicate that SPH result with complex boundary conditions and severe deformation of fluid region can be treated.

Key words: smoothed particle method, non convex region, Delaunay triangulation, post processing

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