EFFICIENT HYBRID FINITE-ELEMENT - BOUNDARY ELEMENT METHOD FOR 3-DIMENSIONAL OPEN-BOUNDARY FIELD PROBLEMS

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Highly storage efficient choices of boundary meshes are devised for hybrid finite element - boundary element analysis in 3-dimensions, and a computationally-efficient algorithm to solve the resulting matrix equations is developed. The boundary mesh makes use of cylindrical symmetry to produce block circulant boundary element matrices with proper choices of basis functions, and results in up to 64-fold reduction in matrix storage. Also the block circulant nature of the boundary element matrices provides a numerically efficient algorithm for solution of the coupled matrix equations. To demonstrate its efficiency this hybrid scheme is applied to a three-dimensional magneto-static field problem, and proves storage and computational efficiency. With this efficiency the hybrid scheme becomes more advantageous than pure finite element method with approximate boundary conditions, and allows to solve large 3-dimensional open boundary field problems in small workstations.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1991-09
Language
English
Article Type
Article; Proceedings Paper
Citation

IEEE TRANSACTIONS ON MAGNETICS, v.27, no.5, pp.4069 - 4072

ISSN
0018-9464
URI
http://hdl.handle.net/10203/66269
Appears in Collection
EE-Journal Papers(저널논문)
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