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研究满足自由水面的水槽格林函数的两种数值计算方法,一是Linton提出的快速收敛数值计算算法,二是对John提出的开阔海域中格林函数关于水槽两侧壁作镜像的数值计算方法。研究表明,Linton提出的快速收敛数值计算算法在特定情况下不适用,因此建议采用镜像格林函数来计算常水深和常宽度水槽中波浪对结构的作用问题。
Two kinds of numerical methods to calculate free-surface Slot Green’s function are studied. One is Linton’s algorithm of fast convergence numerical calculation. The other is John’s numerical method to simulate Green’s function on two sides of the flume in open sea. The research shows that Linton’s algorithm for numerical calculation of fast convergence does not work under certain conditions. Therefore, it is suggested that the mirror Green’s function be used to calculate the effect of wave on the structure in a constant water depth and a constant width sink.