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Moving-Particle Semi-Implicit Method for Simulation of Liquid Sloshing on Roll Motion

PAN Xu-jie,ZHANG Huai-xin(School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200030,China)  
A meshless numerical simulation method was presented to simulate the rolling of a liquid tank.In moving-particle semi-implicit method(MPS),each step of the simulation is decomposed into two steps: explicit step and implicit step.In Navier-Stokes equations,the relationship of partials is used to replace the difference term in old methods,and the variety of particles' number density is used to discern free surface.As a full Lagrange method,the pass through phenomenon is always taken place in simulation.A method used in this paper can reduce the pass through phenomenon and achieve a good result.
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