Numerical Simulation of Effects of Two Different Baffles on Liquid Sloshing by MPS Method

摘要

In this paper, a series of numerical models has been developed to studythe effects of two different baffles on liquid sloshing under the sixdegree-of-freedom (6-DOF) excitation. The moving particle semiimplicit(MPS) method is a mesh-free method which can simulate flowwith large deformation and nonlinear fragmentation of free surfaceeffectively. The MLParticle-SJTU solver based on improved MPSmethod is first validated against the available experimental data for 3-Dliquid sloshing in a rectangular tank under horizontal excitation. Then,the study of liquid sloshing in another tank is carried out under the 6-DOF excitation. The detailed flow field and the variation of impactpressure can be observed clearly. In addition, the effects of twodifferent baffle types on liquid sloshing, two vertical baffle and tworing baffles, are further analyzed based on previous rectangular tank.Results show that the sloshing and pressure amplitudes are obviouslyreduced due to these baffles and the ring baffles are more effective onrestraining sloshing.