模拟自由表面问题的移动粒子半隐式模拟方法  

Simulating Free Surface Problem with Moving Particle Semi-Implicit Method

作　　者：荣少山[1] 陈斌[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《西安交通大学学报》2010年第11期109-112,共4页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基(50976087);高等学校博士学科点专项科研基金资助项目(20090201110001);教育部新世纪优秀人才计划资助项目(NCET-07-0661)

摘　　要：使用移动粒子半隐式(MPS)法对典型的自由表面流动问题——二维溃坝问题进行了模拟,研究了不同粒子分布对模拟结果的影响,发现对于过大和过小的粒子间距均无法得到合理的结果.将模拟结果与SPH、VOF法结果和实验结果进行了比较,发现MPS的模拟结果介于VOF和SPH的模拟结果之间.在没有引入黏性的情况下,MPS法得到的结果比VOF法的结果更接近于实验结果,预期引入黏性后可达到与SPH法同样合理的结果.The moving particle semi-implicit method （MPS） was used to simulate the typical free surface problem, 2D dam break problem, and the effect of initial particle configuration on the simulated results was analyzed. It is found that the reasonable results can not be achieved for too large or too small particle distance. The comparison of the results by MPS, SPH or VOF with the experimental data shows that the result by MPS is between those by VOF and by SPH. With- out the consideration of viscosity, the result by MPS is closer to the experiment than that by VOF. However, the result by MPS with the consideration of viscosity may be similar to that by SPH.

关 键 词：粒子法 移动粒子半隐式法 自由表面流动 二维溃坝 

分 类 号：O351.2[理学—流体力学]