计算物理 ›› 2011, Vol. 28 ›› Issue (4): 523-528.

• 研究论文 • 上一篇    下一篇

物体入水的光滑粒子法模拟

杨秀峰1,2, 彭世镠1, 刘谋斌1   

  1. 1. 中国科学院力学研究所, 北京 100190;
    2. 中国科学院研究生院, 北京 100190
  • 收稿日期:2010-08-20 修回日期:2011-02-10 出版日期:2011-07-25 发布日期:2011-07-25
  • 作者简介:扬秀峰(1985-),男,安徽濉溪,博士生,从事计算流体力学研究,E-mail:kanty@123.com

Simulation of Water Entry with Smoothed Particle Hydrodynamics Method

YANG Xiufeng1,2, PENG Shiliu1, LIU Moubin1   

  1. 1. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
    2. The Graduate University of Chinese Academy of Sciences, Beijing 100190, China
  • Received:2010-08-20 Revised:2011-02-10 Online:2011-07-25 Published:2011-07-25

摘要: 利用LANS-α(Lagrangian-averaged Navier-Stokes-alpha)模型对传统的光滑粒子法进行改进.通过模拟半浮力和零浮力水平圆柱的入水过程,验证改进的光滑粒子法.模拟结果与实验以及其它数值模拟结果符合的很好,表明改进的光滑粒子法适用于研究物体入水问题.

关键词: 光滑粒子法, 物体入水, 自由表面流

Abstract: A modified Smoothed Particle Hydrodynamics(SPH) in Lagrangian-averaged Navier-Stokes-alpha(LANS-α) model was developed to simulate water entry flow.Water entry of a half buoyant cylinder and a neutrally buoyant cylinder were simulated.SPH results are in good agreement with reported experiments and numerical results of others.It shows that the modified SPH method is practicable in simulation of water entry flow.

Key words: SPH method, water-entry flow, free surface flow

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