Numerical visualization of free surface oscillation predicted with arbitrary Lagrangian-Eulerian method |
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| Authors: | S. Ushijima |
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| Affiliation: | (1) School of Mechanical Engineering, Pusan National University, Busan, 609-735, Korea;(2) LG Electronics Co., Changwon, Korea;(3) Doosan Heavy Industry and Construction, Changwon, Korea; |
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| Abstract: | A numerical prediction method has been proposed to predict non-linear free surface oscillation in a three-dimensional container. The fluid motions are numerically predicted with Navier-Stokes equations discretized in a Lagrangian scheme with sufficient numerical accuracy. The profile of a free surface is precisely represented with three-dimensional body-fitted coordinates (BFC), which are regenerated in each computational step on the basis of the arbitrary Lagrangian-Eulerian (ALE) formulation. The computational method was applied to non-linear sloshings and transitions from sloshing to swirling motions. The predicted free surface motions were visualized as sequential image files and animations to understand their dynamic futures |
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