TRACKING METHODS FOR FREE SURFACE AND SIMULATION OF A LIQUID DROPLET IMPACTING ON A SOLID SURFACE BASED ON SPH

被引：5

作者：

Li Da-ming ^{[1
]}

Xu Ya-nan ^{[1
]}

Li Ling-ling ^{[1
]}

Lu Hui-jiao ^{[1
]}

Bai Ling ^{[1
]}

机构：

[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Sch Civil Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF HYDRODYNAMICS | 2011年 / 23卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Smoothed Particle Hydrodynamics (SPH) method; viscous liquid droplet; impacting on a solid surface; free surface; DYNAMICS;

D O I：

10.1016/S1001-6058(10)60135-7

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

With some popular tracking methods for free surface, simulations of several typical examples are carried out under various flow field conditions. The results show that the Smoothed Particle Hydrodynamics (SPH) method is very suitable in simulating the flow problems with a free surface. A viscous liquid droplet with an initial velocity impacting on a solid surface is simulated based on the SPH method, and the surface tension is considered by searching the free surface particles, the initial impact effect is considered by using the artificial viscosity method, boundary virtual particles and image virtual particles are introduced to deal with the boundary problem, and the boundary defect can be identified quite well. The comparisons of simulated results and experimental photographs show that the SPH method can not only exactly simulate the spreading process and the rebound process of a liquid droplet impacting on a solid surface but also accurately track the free surface particles, simulate the free-surface flow and determine the shape of the free surface due to its particle nature.

引用

页码：447 / 456

页数：10

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