Title :
Non-Overlapping Domain Decomposition Combined with Algebraic Multigrid Method for Eddy Current Fields in Railgun
Author :
Liu, Yuanqing ; Chen, Duo ; Gu, Shanqiang ; Zhang, Bo
Author_Institution :
Dept. of Elecrical Eng., Tsinghua Univ., Beijing
Abstract :
A nesting combination of the non-overlapping domain decomposition and the algebraic multigrid method is developed in this paper for solving eddy current problems. The iterations between sub-domains in the domain decomposition method can be decreased greatly due to the application of the algebraic multigrid method. The finite element method with edge element is used for the subdomain computation. The harmonic fields in railgun are solved using this method, And the results show its efficiency and accuracy compared with ANSYS
Keywords :
eddy currents; finite element analysis; railguns; ANSYS; algebraic multigrid method; eddy current fields; edge element; finite element method; harmonic fields; nonoverlapping domain decomposition; railgun; Computational modeling; Convergence; Distributed decision making; Eddy currents; Electromagnetic fields; Finite element methods; Large-scale systems; Multigrid methods; Railguns; Rails;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633154
