On the Solution of Large EM Problems using a Fast Geometrically Non-Conforming Domain Decomposition Method

Author

Zhao, Kezhong ; Lee, Jin-Fa

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH

fYear

2006

fDate

9-14 July 2006

Firstpage

3981

Lastpage

3984

Abstract

This paper implements a fast geometrically non-conforming dual primal-finite element tearing interconnecting (DP-FETI) DDM to help alleviate these problems. The present method is largely composed of three major ingredients; 1) decoupling of the geometrically conforming and non-conforming domains by the use of the FETI algorithm; 2) solution of the resulting finite element matrix equation with multiple right-hand-sides using the state-of-art pMUS preconditioner; 3) compression of the numerical Green´s function via an efficient rank-revealing SVD algorithm

Keywords

Green´s function methods; electromagnetic wave propagation; finite element analysis; singular value decomposition; DP-FETI DDM; dual primal-finite element tearing interconnecting DDM; fast geometrically nonconforming domain decomposition; finite element matrix equation; large EM problems; multiple right-hand-sides; numerical Green´s function; pMUS preconditioner; rank-revealing SVD algorithm; Antenna arrays; Distributed decision making; Equations; Finite element methods; Marine vehicles; Matrix decomposition; Mortar; Partitioning algorithms; Phasor measurement units; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711498

Filename

1711498