TY  - EJOU
AU  - Takei, A.  
AU  - Yoshimura, S.  
AU  - Kanayama, H.  

TI  - Large-Scale Full Wave Analysis of Electromagnetic Field by Hierarchical Domain Decomposition Method
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2009
VL  - 40
IS  - 1
SN  - 1526-1506

AB  - This paper describes a large-scale finite element analysis (FEA) for a high-frequency electromagnetic field of Maxwell equations including the displacement current. A stationary Helmholtz equation for the high-frequency electromagnetic field analysis is solved by considering an electric field and an electric scalar potential as unknown functions. To speed up the analysis, the hierarchical domain decomposition method (HDDM) is employed as a parallel solver. In this study, the Parent-Only type (Parallel processor mode: P-mode) of the HDDM is employed. In the P-mode, Parent processors perform the entire FEA. In this mode, all CPUs can be used without idling in an environment of 10-20 CPUs. A whole body cavity resonator (TEAM Workshop problem 29) and a real-world commuter train model with 12.8 million degrees-of-freedom are solved to verify accuracy and performance of the developed method.
KW  - High-frequency electromagnetic field
KW  -  Helmholtz equations
KW  -  Finite element method
KW  -  Hierarchical domain decomposition method

DO  - 10.3970/cmes.2009.040.063