摘要
本文在离开物体不远处的外场,给出了Stokes波中三维物体的二阶绕射势的解析表达式,其关于极角θ的傅里叶分量满足Sommerfeld辐射条件。在内场,给出了用简单Green函数方法求解回转体二阶绕射势的计算方法。作为例子,本文计算了Stokes波中一定吃水圆柱体的二阶压力分布和二阶力,计算结果和有关实验结果进行了比较,二者的符合程度是令人满意的。
In present paper, the second-order diffraction potential for a three-dinensional body is expressed analytically in the outer domain and the Sommerfield radiation condition is imposed on each Fourier component of the second-order diffraction potential in the circumferential coordinate θ to ensure the uniqueness of the solution. In the inner domain, the boundary element method with 1/r type Green function is used to calculate the secondorder diffraction potential for an axisymmetric body. The numerical results of second-order wave pressure and forces are compared with experimental data, the agreements are satisfactory.
出处
《中国造船》
EI
CSCD
北大核心
1992年第1期1-18,共18页
Shipbuilding of China
