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Journal cover: COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

ISSN: 0332-1649

Online from: 1982

Subject Area: Electrical & Electronic Engineering

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NUMERICAL ANALYSIS OF OPEN BOUNDARY PROBLEMS USING FINITE ELEMENT SUBSTRUCTURING AND GALERKIN BOUNDARY ELEMENTS


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Title:NUMERICAL ANALYSIS OF OPEN BOUNDARY PROBLEMS USING FINITE ELEMENT SUBSTRUCTURING AND GALERKIN BOUNDARY ELEMENTS
Author(s):D. BEATOVIC, (Computational Fields Laboratory, Department of Electrical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, U.S.A.), P.L. LEVIN, (Computational Fields Laboratory, Department of Electrical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, U.S.A.), H. GAN, (Computational Fields Laboratory, Department of Electrical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, U.S.A.), J.M. KOKERNAK, (Computational Fields Laboratory, Department of Electrical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, U.S.A.), A.J. HANSEN, (Computational Fields Laboratory, Department of Electrical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, U.S.A.)
Citation:D. BEATOVIC, P.L. LEVIN, H. GAN, J.M. KOKERNAK, A.J. HANSEN, (1992) "NUMERICAL ANALYSIS OF OPEN BOUNDARY PROBLEMS USING FINITE ELEMENT SUBSTRUCTURING AND GALERKIN BOUNDARY ELEMENTS", COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 11 Iss: 2, pp.295 - 309
Article type:General review
DOI:10.1108/eb010093 (Permanent URL)
Publisher:MCB UP Ltd
Abstract:A hybrid formulation is proposed that incorporates finite element substructuring and Galerkin boundary elements in the numerical solution of Poisson's or Laplace's equation with open boundaries. Substructuring the problem can dramatically decreases the size of matrix to be solved. It is shown that the boundary integration that results from application of Green's first theorem to the weighted residual statement can be used to advantage by imposing potential and flux continuity through the contour which separates the interior and exterior regions. In fact, the boundary integration is of exactly the same form as that found in Galerkin boundary elements.


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