A Fast High Order Iterative Solver for the Electromagnetic Scattering by Open Cavities Filled with the Inhomogeneous Media

A Fast High Order Iterative Solver for the Electromagnetic Scattering by Open Cavities Filled with the Inhomogeneous Media

Year:    2013

Author:    Meiling Zhao

Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 2 : pp. 235–257

Abstract

The scattering of the open cavity filled with the inhomogeneous media is studied. The problem is discretized with a fourth order finite difference scheme and the immersed interface method, resulting in a linear system of equations with the high order accurate solutions in the whole computational domain. To solve the system of equations, we design an efficient iterative solver, which is based on the fast Fourier transformation, and provides an ideal preconditioner for Krylov subspace method. Numerical experiments demonstrate the capability of the proposed fast high order iterative solver.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/aamm.12-m12119

Advances in Applied Mathematics and Mechanics, Vol. 5 (2013), Iss. 2 : pp. 235–257

Published online:    2013-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    23

Keywords:    Helmholtz equation compact finite difference scheme discontinuous wave numbers immerse interface method fast iterative solver.

Author Details

Meiling Zhao

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