NUMERICAL SIMULATION OF 2D LIQUID SLOSHING

Author:

CAI LI1,ZHOU JUN2,ZHOU FENGQI2,XIE WENXIAN1,NIE YUFENG1

Affiliation:

1. School of Science, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China

2. College of Astronautics, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China

Abstract

In this paper, we present an extended ghost fluid method (GFM) for computations of liquid sloshing in incompressible multifluids consisting of inviscid and viscous regions. That is, the sloshing interface between inviscid and viscous fluids is tracked by the zero contour of a level set function and the appropriate sloshing interface conditions are captured by defining ghost fluids that have the velocities and pressure of the real fluid at each point while fixing the density and the kinematic viscosity of the other fluid. Meanwhile, a second order single-fluid solver, the central-weighted-essentially-nonoscillatory(CWENO)-type central-upwind scheme, is developed from our previous works. The high resolution and the nonoscillatory quality of the scheme can be verified by solving several numerical experiments. Nonlinear sloshing inside a pitching partially filled rectangular tank with/without baffles has been investigated.

Publisher

World Scientific Pub Co Pte Lt

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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