報告題目：A fast algorithm for the electromagnetic scattering from a large rectangular cavity in three dimensions
報 告 人：陳豔利講師 東北大學
報告時間：2020年9月10日上午 10:45-11:20
報告地點：騰訊會議 ID：233 270 107
會議密碼：0910
校内聯系人：呂俊良 lvjl@jlu.edu.cn
報告摘要：
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.
報告人簡介：陳豔利，東北大學講師。于2019年8月至2020年8月到美國普渡大學訪問一年。主要研究内容包括有限體積法和散射問題方面的相關研究。
