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亚慱体育app下载、所2020年系列学术活动(第211场):陈艳利讲师 东北大学

发表于: 2020-09-09   点击: 

报告题目:A fast algorithm for the electromagnetic scattering from a large rectangular cavity in three dimensions

报 告 人:陈艳利讲师  东北大学

报告时间:2020年9月10日上午 10:45-11:20

报告地点:腾讯会议 ID:233 270 107

会议密码:0910

校内联系人:吕俊良  lvjl@jlu.edu.cn


报告摘要:

This talk is concerned with the three-dimensional electromagnetic scattering from a large open rectangular cavity that is embedded in a perfectly electrically conducting infinite ground plane. By introducing a transparent boundary condition, the scattering problem is formulated into a boundary value problem in the bounded cavity. Based on the Fourier expansions of the electric field, the Maxwell equation is reduced to one-dimensional ordinary differential equations for the Fourier coefficients. A fast algorithm, employing the fast Fourier transform and the Gaussian elimination, is developed to solve the resulting linear system for the cavity which is filled with either a homogeneous or a layered medium. In addition, a novel scheme is designed to evaluate rapidly and accurately the Fourier transform of singular integrals. Numerical experiments are presented for large cavities to demonstrate the superior performance of the proposed method.


报告人简介:陈艳利,东北大学讲师。于2019年8月至2020年8月到美国普渡大学访问一年。主要研究内容包括有限体积法和散射问题方面的相关研究。