上海交通大学学报

上海交通大学学报（自然版）

• 工程力学 • 上一篇    下一篇

用移动粒子半隐式法模拟液舱横摇晃荡现象

潘徐杰，张怀新   

  1. (上海交通大学 船舶海洋与建筑工程学院， 上海 200030)
  • 收稿日期:2007-11-13 修回日期:1900-01-01 出版日期:2008-11-28 发布日期:2008-11-28
  • 通讯作者: 张怀新

MovingParticle SemiImplicit Method for Simulation of Liquid Sloshing on Roll Motion

PAN Xu-jie,ZHANG Huai-xin   

  1. (School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University,
    Shanghai 200030, China)
  • Received:2007-11-13 Revised:1900-01-01 Online:2008-11-28 Published:2008-11-28
  • Contact: ZHANG Huai-xin

摘要： 应用移动粒子半隐式法（MPS）模拟了半满粘性液舱的横摇晃荡运动.模拟中每个时间步分为显示和隐式两步，控制方程中利用粒子与周围粒子之间的关系取代了传统方法中的差分项，利用粒子数密度的变化来判别自由表面.MPS法作为一种Lagrange数值方法，存在着粒子穿透现象.文中使用了一种防穿透方法，取得了较好的结果.结果表明，MPS法在复杂曲面的布点及自由表面的表现上有一定的优势.

关键词: 晃荡, 横摇, 粘性流体, 不可压缩流体, 移动粒子半隐式法

Abstract: A meshless numerical simulation method was presented to simulate the rolling of a liquid tank. In movingparticle semiimplicit method (MPS), each step of the simulation is decomposed into two steps: explicit step and implicit step. In NavierStokes equations, the relationship of partials is used to replace the difference term in old methods, and the variety of particles’ number density is used to discern free surface. As a full Lagrange method, the pass through phenomenon is always taken place in simulation.A method used in this paper can reduce the pass through phenomenon and achieve a good result.

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