期刊
OCEAN ENGINEERING
卷 36, 期 6-7, 页码 500-510出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2009.01.020
关键词
Fully nonlinear free surface wave; Sloshing fluids; 3D tank; Finite difference method
资金
- National Science Council [NSC 96-2221-E-110-107-MY3]
A 3D time-independent finite difference method is developed to solve for wave sloshing in a three-dimensional tank excited by coupled surge and sway motions. The 3D equations of fluid motion are derived in a moving coordinate system. The three-dimensional tank, with an arbitrary depth and a square base, is subjected to a range of excitation frequencies with motions that exhibit multiple degrees of freedom. For demonstration purposes the numerical scheme is validated by a benchmark study. Five types of sloshing waves were observed when the tank is excited by various excitation frequencies. A spectral analysis identified the resonant frequencies of each type of wave and the results show a strong correlation between resonant modes and the occurrence of the sloshing wave types. The method can be used to simulate fluid sloshing in a 3D tank with six-degrees of freedom. (C) 2009 Elsevier Ltd. All rights reserved.
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