摘要
引入可压缩因子,对移动粒子半隐式方法(MPS)进行了改进,解决了MPS方法在计算中容易出现的不稳定问题.使用改进后的方法对液柱倒塌算例进行了模拟计算,并将计算结果与实验及其他数值计算结果进行了比较.计算表明,引入可压缩因子大大提高了计算的稳定性,且方法简单易于实现,在液柱与挡板发生碰撞、流体发生大变形时依然能进行有效地模拟.
A compressible factor was applied to improve the stability of calculation procedure in the moving particle semi-implicit method for the numerical simulation of fluid free surface flow. Collapse of a liquid column was successively simulated using the improved algorithm and the resuits were compared with the relative experiments and other numerical simulations. It is shown that the introduction of a compressible factor largely increases the computation stability, and the proposed method is simple and effective to simulate fluid free surface flow even when the collision happens and big deformation exists.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2006年第3期249-252,288,共5页
Journal of Xi'an Jiaotong University
基金
教育部跨世纪优秀人才基金资助项目
关键词
自由表面流动
数值模拟
移动粒子半隐式方法
可压缩因子
free surface flow
numerical simulatiom moving particle semi-implicit method
compressible factor
