A Lagrangian vortex-lattice method for arbitrary bodies interacting with a linearized semi-Lagrangian free surface

被引：0
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作者：
Liut, Daniel A. [1 ]
Lin, Woei-Min [1 ]
机构：
[1] SAIC Ship Technology Division, Annapolis, MD, United States
来源：
International Shipbuilding Progress | 2006年 / 53卷 / 01期
关键词：
Aerodynamics - Damping - Hydrodynamics - Numerical methods - Problem solving - Vorticity - Wakes;
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摘要：
A Lagrangian vortex-lattice approach is presented, through which bodies of arbitrary shape, wakes shedding from them, and a free surface can be modeled using sheets of concentrated vorticity. The method accounts for a full interaction of all vortex sheets in the time domain. A damping beach is used on the external boundaries of the free-surface domain. Multiple time-step computations combined with a versatile gridding approach make the current numerical implementation suitable for solving a wide variety of hydrodynamic and low-speed aerodynamic problems. Several examples and comparisons with experimental data are presented. © 2006 - IOS Press.
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