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提出了一种适于在 PC机上计算圆柱分层媒质中格林函数的数值方法 .运用迭代方法和渐近方法分区域计算了复宗量圆柱组合函数 ,得到了谱域格林函数的精确值 .用高精度的数值积分法将谱域格林函数经逆傅里叶变换 ,求得了格林函数的空域结果 .计算结果与现有文献比较 ,取得了良好的一致性 ,证明了数值模型的正确性和精确性
A numerical method suitable for calculating Green’s function in cylinder stratified medium is presented in this paper.An iterative method and asymptotic method are used to calculate the complex cylinder function of complex number and obtain the exact value of the Green’s function in the spectral domain The high-precision numerical integration method obtains the Green’s function’s space-domain result by transforming the Green’s function of the spectral domain by the inverse Fourier transform. The calculated results are in good agreement with the existing literature and the correctness and accuracy of the numerical model are proved Sex