求解混合型拟周期散射问题的间断Galerkin算法

Discontinuous Galerkin Algorithm for Mixed Quasi-periodic Scattering Problem

应用间断Galerkin算法思想,计算一类散射体为介质和障碍混合型的拟周期散射问题,其基本解函数和Rayleigh-Bloch展式分别用于近似散射场在有界区域和无界区域的性态.数值算例检验了算法的有效性.

Using the idea of the discontinuous Galerkin algorithm,we calculated a class of quasi-periodic scattering problem with a mixture of media and obstacles.The fundamental solution functions and Rayleigh-Bloch expansion were used to approximate behavior of the scattering field in the bounded regions and unbounded regions,respectively.The effectiveness of the algorithm was verified by numerical example.