An Adaptive Finite Element Method for the Wave Scattering by a Periodic Chiral Structure

An Adaptive Finite Element Method for the Wave Scattering by a Periodic Chiral Structure

Year:    2018

Author:    Zhoufeng Wang, Peiqi Huang

Journal of Computational Mathematics, Vol. 36 (2018), Iss. 6 : pp. 845–865

Abstract

The electromagnetic wave propagation in the chiral medium is governed by Maxwell's equations together with the Drude-Born-Fedorov (constitutive) equations. The problem is simplified to a two-dimensional scattering problem, and is formulated in a bounded domain by introducing two pairs of transparent boundary conditions. An a posteriori error estimate associated with the truncation of the nonlocal boundary operators is established. Based on the a posteriori error control, a finite element adaptive strategy is presented for computing the diffraction problem. The truncation parameter is determined through sharp a posteriori error estimate. Numerical experiments are included to illustrate the robustness and effectiveness of our error estimate and the proposed adaptive algorithm.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jcm.1705-m2017-0009

Journal of Computational Mathematics, Vol. 36 (2018), Iss. 6 : pp. 845–865

Published online:    2018-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    21

Keywords:    Maxwell's equations A posteriori error analysis Adaptive algorithm Scattering.

Author Details

Zhoufeng Wang

Peiqi Huang