三维多浮体水动力学问题中波浪交互理论的参数应用特性探究分析

Research on Application Characteristics of Parameters in Wave-interaction Theory when Solving Hydrodynamic Problems of 3-D Multiple Floating Bodies

波浪交互理论是解决三维多浮体水动力问题的一种有效方法,该方法能正确处理相邻浮体造成的波浪干涉效应,尤其适用于浮体数目较多的场合。文中运用波浪交互理论,对不同间距下一个箱型多浮体系统的水动力问题进行求解,研究其中的关键参数--消逝波模数和傅立叶级数展开项数的变化,对浮体表面压力分布和波浪力等水动力结果所产生的影响,为波浪交互理论在三维多浮体水动力问题上的进一步深入应用提供依据。

he wave interaction theory is an effective way to solve hydrodynamic problems for 3-D muhiple floating bodies, by correctly dealing with the wave interferential effects. Thus, it is especially suitable to be adopted in the case when the number of floating bodies becomes large. In this paper, the wave interaction theory is applied to solve the hydrodynamic problem of four identical box-shaped floating bodies as the separation distance between bodies varies, and the influence of two critical parameters, the numbers of evanescent wave modes and of Fourier series in the-direction, on the results, such as the pressure distribution on the body surface and the wave exciting force, is studied. All of these will help us go further in solving 3-D hydrodynamic problems of multiple floating bodies by the wave interaction theory.