Numerical simulation of liquid sloshing in a spherical tank by MPS method  

作　　者：Cong-yi Huang Ji-fei Wang Wei-wen Zhao De-cheng Wan 

机构地区：[1]Computational Marine Hydrodynamic Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai,200240,China [2]Shanghai Aerospace System Engineering Institute,Shanghai,201109,China

出　　处：《Journal of Hydrodynamics》2024年第2期232-240,共9页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No.52131102);the National Key Research and Development Program of China (Grant No.2022YFC2806705).

摘　　要：This paper investigates the sloshing phenomena in a spherical liquid tank using the moving particle semi-implicit(MPS)method,a crucial study in fluid dynamics.Distinct from previous research focused on rectangular or LNG tanks,this work explores the unique motion patterns inherent to spherical geometries.The accuracy of our in-house MPS solver MLParticle-SJTU is validated against experimental data and finite volume method(FVM).And the MPS method reveals a closer alignment with experimental outcomes,which suggests that MPS method is particularly effective for modeling complex,non-linear fluid behaviors.Then the fluid’s response to excitation at its natural frequency is simulated,showcasing vigorous sloshing and rotational motion.Detailed analyses of the fluid motion are conducted by drawing streamline diagrams,velocity vector diagrams,and vorticity maps.The fluid’s motion response is explored using both time-domain and frequency-domain curves of the fluid centroid,as well as the sloshing force.

关 键 词：Moving particle semi-implicit(MPS)method spherical tank liquid sloshing model experiment 

分 类 号：O35[理学—流体力学]