基于移动粒子半隐式法的表面张力模拟  

Simulation of surface tension force using moving particle semi-implicit method

作　　者：张帅[1] 解利军[1] 郑耀[1] 

机构地区：[1]浙江大学工程与科学计算研究中心,浙江大学航空航天学院,杭州310027

出　　处：《计算力学学报》2011年第3期345-349,共5页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金(10876036,10872182);浙江省科技厅基金(2009C31112);浙江大学“紫金计划”资助项目

摘　　要：采用移动粒子半隐式法(MPS)模拟了受表面张力影响的自由面流动。表面张力的计算采取了一种较适合于MPS方法的表面自由能模型。方形液滴振荡和射流断裂的模拟结果分别与理论分析和试验结果一致,同时进行了三维射流注水模拟,从而验证了MPS方法结合该表面张力模型可以有效、方便地进行自由面流动中表面张力现象的模拟。This study used the moving particle semi-implicit（MPS） method to simulate the surface tension force in the free surface flow.A surface tension force model for the MPS was implemented,which was proposed based on the potential energy.This numerical approach for the surface tension force in the free surface flow was verified by the numerical simulation of the two-dimensional liquid droplet oscillation and the liquid jet breakup.Simulation results agreed well with analytical or experimental ones.Moreover,a three-dimensional water jet into a cylinder was simulated using the MPS method together with the surface tension model.It was then validated that the MPS method together with the surface tension model can effectively and easily simulate the surface tension force in the free surface flows.

关 键 词：移动粒子半隐式法(MPS) 自由面流动 表面张力 液滴振荡 射流断裂 

分 类 号：O241.82[理学—计算数学]