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期刊论文

Second-Order Wave Diffraction Around 3-D Bodies by A Time-Domain Method*

滕斌BAI Wei and TENG Bin

China Ocean Engineering, Vo1. 15, No.1, PP. 73-84,-0001,():

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摘要/描述

A time-domain method is applied to simulate nonlinear wave diffraction around a surface piercing 3-D arbitrary body. The method involves the application of Taylor series expansions and the use of perturbation procedure to estab-lish the corresponding boundary value problems with respect to a time-independent fluid domain. A boundary element method based on B-spline expansion is used to calculate the wave field at each time step, and the free surface boundary condition is satisfied to the second order of wave steepness by a numerical integration in time. An artificial damping lay-er is adopted on the free surface for the removal of wave reflection from the outer boundary. As an illustration, the meth-od is used to compute the second-order wave forces and runup on a surface-piercing circular cylinder. The present method is found to be accurate, computationally efficient, and numerically stable.

版权说明:以下全部内容由滕斌上传于   2004年12月28日 23时16分42秒,版权归本人所有。

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