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Title: Application of the improved finite element-fast multipole method to large scattering problems
Authors: Wei, X.C.
Li, E.P. 
Zhang, Y.J.
Issue Date: 2004
Citation: Wei, X.C.,Li, E.P.,Zhang, Y.J. (2004). Application of the improved finite element-fast multipole method to large scattering problems. Progress in Electromagnetics Research 47 : 49-60. ScholarBank@NUS Repository.
Abstract: The finite element hybridized with the boundary integral method is a powerful technique to solve the scattering problem, especially when the fast multipole method is employed to accelerate the matrix-vector multiplication in the boundary integral method. In this paper, the multifrontal method is used to calculate the triangular factorization of the ill conditioned finite element matrix in this hybrid method. This improves the spectral property of the whole matrix and makes the hybrid method converge very fast. Through some numerical examples including the scattering from a real-life aircraft with an engine, the accuracy and efficiency of this improved hybrid method are demonstrated.
Source Title: Progress in Electromagnetics Research
ISSN: 10704698
DOI: 10.2528/PIER03092501
Appears in Collections:Staff Publications

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