Numerical Method for the Simulation of Liquid-Solid Body Dynamics

摘要

A numerical method for the simulation of the motion of a solid body with a cavity partially filled with a liquid is presented. The coupled problem is partitioned into two subproblems: the motion of the solid body and the motion of the liquid in the cavity. The two subprocesses can be integrated using different time steps. The method is applied to the free, unconstrained motion of a narrow annular tank partially filled with an inviscid liquid. In the test cases the liquid mass constitutes 10%, 50%, and 90% of the total mass respectively.