计算物理 ›› 1997, Vol. 14 ›› Issue (2): 155-166.

• 论文 • 上一篇    下一篇

三维SPH程序及其在斜高速碰撞问题的应用

贝新源, 岳宗五   

  1. 国防科技大学应用物理系, 长沙 410073
  • 收稿日期:1995-12-19 修回日期:1996-12-21 出版日期:1997-03-25 发布日期:1997-03-25
  • 基金资助:
    国家863高技术惯性约束聚变主题资助

A STUDY ON 3-DIMENSIONAL SPH

Bei Xinyuan, Yue Zongwu   

  1. Department of Applied Physics, National University of Defence Technology, Changsha 410073
  • Received:1995-12-19 Revised:1996-12-21 Online:1997-03-25 Published:1997-03-25

摘要: 叙述了平滑粒子流体动力学(简称SPH)的基本概念,重新推导了所用的基本方程。介绍了具体计算格式、算法以及策略等。对所编制的程序作了一定的检验。对SPH方法中的人为粘性和人为热流的作用作了数值考查。还提供了一个三维高速碰撞现象的算例。最后指出尚存在的若干问题。

关键词: 流体动力学, 数值模拟, SPH方法

Abstract: The basic concepts and equations of Smoothed Particle Hydrodynamics(SPH) are reformulated.The strategy and practice of programming a 3-dimensional SPH code and also the check of the code are outlined.The influences of artificial viscocity together with artificial heat flow are investigated numerically.As an example of the application,the results of numerical simulation of a 3-dimensional hypervelocity impact problem are given with some existing problems of SPH method.

Key words: hydrodynamics, numerical simulation, SPH

中图分类号: