半无限开敞水域船舶水动力系数问题研究

在解决三维浮体靠泊的水动力问题时,正确处理浮体和壁面之间的相互作用是分析计算的关键所在。文章运用边界元法和叠加格林函数法对箱型浮体的靠泊问题进行求解,通过与SESAM软件对比分析浮体水动力系数的结果,验证这种方法编写的程序计算结果的精确度。并通过改变浮体与壁面之间的距离,计算壁面对三维浮体的影响,并对计算结果进行分析。

Research on hydrodynamic parameter of ship onsemi-infinite water area

It is a key point to deal with the interaction between body and wall, when solving a hydrodynamic problem of 3-D multiple floating body berth alongside a pier. In this paper, boundary element method and superpose green function method are used to solve a 3-D berthing problem of box-shaped floating body. By comparing the hydrodynamic parameter of this program and SESAM software, the accuracy of the program by this method is discussed. The influence of wall action in the 3-D problem of floating body berth alongside a pier is studied by changing the separation distance between body and the pier, and the results are analyzed in the case when separation distance is changing.