Premium
Multiphase smoothed particle hydrodynamics modeling of forced liquid sloshing
Author(s) -
Zheng Bo Xue,
Sun Lei,
Chen Zhen,
Cheng Cong,
Liu Chang Feng
Publication year - 2021
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.4889
Subject(s) - smoothed particle hydrodynamics , slosh dynamics , discretization , mechanics , multiphase flow , compressibility , boundary value problem , discontinuity (linguistics) , particle (ecology) , physics , classical mechanics , mathematics , mathematical analysis , geology , oceanography , quantum mechanics
In the present paper, an improved multiphase weakly compressible smoothed particle hydrodynamics model for balancing the accuracy and stability of the long‐term simulations is proposed to model the forced liquid sloshing in a tank. The governing equations of the multiphase flow are discretized by considering the density discontinuity over the interface. To suppress the pressure oscillation, a previous density correction term suitable only for single‐phase problems is modified and incorporated into the discrete continuity equation to suit multiphase problems. The modified density reinitialization algorithm is implemented to calculate the pressure of the boundary particles, and the coupled dynamic solid boundary treatment (SBT) is employed to determine the rigid wall condition. For convenience, a numerical probe algorithm is also proposed to accurately measure the wave height. The present model exhibits a better numerical stability than the previous multiphase smoothed particle hydrodynamics model, and its results well confirm with the experimental data of the forced sloshing of liquid excited by swaying or rolling.