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

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 liq...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2011-08, Vol.23 (4), p.447-456
Main Authors: LI, Da-ming, XU, Ya-nan, LI, Ling-ling, LU, Hui-jiao, BAI, Ling
Format: Article
Language:English
Subjects:
Boundaries
Droplets
Engineering
Engineering Fluid Dynamics
Fluid dynamics
Fluid flow
free surface
Hydrology/Water Resources
impacting on a solid surface
Liquids
Numerical and Computational Physics
Simulation
Smoothed Particle Hydrodynamics (SPH) method
Solid surfaces
SPH方法
Tracking
viscous liquid droplet
固体表面
模拟
液滴
粒子动力学
自由表面流
跟踪方法
边界问题
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(10)60135-7