Numerical Investigation on Sloshing Pressure for Moss-Type LNG Tank based on Different SPH Models

摘要

In this research, the investigation on simulation of sloshing pressurebased on SPH is mainly demonstrated. Two different boundaryconditions, dynamic boundary conditions (DBC) and dummy particleconditions (DPC), are utilized in the SPH models. The benchmark testwith respect to the traditional 2D rectangular tank is firstly conducted.Then, simulations based on two boundary conditions are performed for3D spherical shape MOSS-Type tank. The corresponding model testsare carried out to verify the performance of numerical simulation.Smoothed boundary model (SBM) is used to better illustrate the 3Dspherical shape and the predicted pressure based on DBC and DPC canbe enhanced by SBM. Finally, the influence of particle shift algorithmon the prediction of surface pressure is discussed.