Application of multilevel inverse-based ILU preconditioning to implicit time domain finite element method

Author

Yin, F. ; Sheng, X.Q.

Author_Institution

Center for Electromagn. Simulation, Beijing Inst. of Technol., Beijing, China

fYear

2011

fDate

22-25 May 2011

Firstpage

388

Lastpage

390

Abstract

The major disadvantage of the implicit time domain finite element method (TDFEM) is that a large sparse matrix equation has to be solved repeatedly at each time step. To speed up solving of the matrix equations, a multilevel inverse-based incomplete LU (MIB-ILU) preconditioning is employed in this paper for 3D scattering problems. Numerical experiments show that the MIB-ILU approach exhibits high efficiency and significantly improves the computing capability of the TDFEM.

Keywords

electromagnetic wave scattering; finite element analysis; sparse matrices; time-domain analysis; 3D scattering problem; MIB-ILU preconditioning; TDFEM; electromagnetic scattering; implicit time domain finite element method; multilevel inverse-based ILU preconditioning; multilevel inverse-based incomplete LU; sparse matrix equation; Equations; Finite element methods; Mathematical model; Scattering; Sparse matrices; Three dimensional displays; Time domain analysis; electromagnetic scattering; incomplete LU preconditioning; time domain finite element;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8556-7

Type

conf

DOI

10.1109/ICMTCE.2011.5915540

Filename

5915540