Material-Based Limiters for the Time-Domain Maxwell Equations with Thin Conducting Sheets

Author: Bishop D.G.

Source: Journal of Computational Physics, Volume 121, Number 1, October 1995 , pp. 115-128(0)

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Abstract:

An explicit upwind-difference predictor-corrector integration scheme is applied to the time-domain Maxwell equations of electromagnetics using a cell-centered finite-volume implementation. The characteristic-based numerical flux and material-based limiters (which are scalar coefficients of the extended second-order correction terms in the corrector step) are reformulated for a material interface that contains a thin electric and-or thin magnetic conducting sheet. The integration scheme requires the material-based limiters to correctly model wave reflection and transmission at a material interface and to enable the numerical solution to be advanced at the maximum timestep prescribed by linear stability analysis. The effect of material based limiters is demonstrated for one-dimensional wave propagation in isotropic nonhomogeneous materials with and without thin conducting sheets.Copyright 1995, 1999 Academic Press

Language: English

Document Type: Research article

Affiliations: MDA Engineering, Inc., Arlington, Texas 76010

Publication date: 1995-10-01