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A 3-D Discontinuous Spectral Element Time-Domain Method for Maxwell' s Equations.

A 3-D Discontinuous Spectral Element Time-Domain Method for Maxwell' s Equations.

Authors :
Joon-Ho Lee
Jiefu Chen
Qing Huo Liu
Source :
IEEE Transactions on Antennas & Propagation; Sep2009, Vol. 57 Issue 9, p2666-2674, 9p, 4 Graphs
Publication Year :
2009

Abstract

A discontinuous spectral element time-domain method is proposed to analyze transient electromagnetic properties of general 3-D structures. This method is advantageous in that its mass matrices are block-diagonal due to the Gauss-Lobatto-Legendre polynomials, and it allows different orders of basis functions for each subdomain. The Riemann solver is employed in the boundary integral terms to communicate fields between adjacent subdomains. Perfectly matched layers are utilized to truncate the computational domain. Galerkin method is used for spatial discretization, and a fourth-order Runge-Kutta scheme is employed for the time integration. The validity of the proposed approach is demonstrated through several numerical examples of initial value problems and scattering problems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0018926X
Volume :
57
Issue :
9
Database :
Complementary Index
Journal :
IEEE Transactions on Antennas & Propagation
Publication Type :
Academic Journal
Accession number :
44184825
Full Text :
https://doi.org/10.1109/TAP.2009.2027731