An Improved Method for Pressure Calculation by Particle Method

Abstract

A method suppressing numerical oscillation in pressure by particle method is suggested. The method is based on MPS(Moving Particle Semi-implicit) method. Each particle is considered as just an ALE discrete point, which has added variables calculated by auxiliary computation process. The characteristic feature is that oscillatory component of particle's motion is separated from the flow field. The effectiveness in suppressing numerical oscillation is demonstrated with simulation of a tank-sloshing problem.