A Domain Decomposition Algorithm With Finite Element-Boundary Element Coupling

YAN Bo; DU Juan; HU Ning; Sekine Hideki

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YAN Bo, DU Juan, HU Ning, Sekine Hideki. A Domain Decomposition Algorithm With Finite Element-Boundary Element Coupling[J]. Applied Mathematics and Mechanics, 2006, 27(4): 463-469.

Citation:

YAN Bo, DU Juan, HU Ning, Sekine Hideki. A Domain Decomposition Algorithm With Finite Element-Boundary Element Coupling[J]. Applied Mathematics and Mechanics, 2006, 27(4): 463-469.

Citation:

YAN Bo, DU Juan, HU Ning, Sekine Hideki. A Domain Decomposition Algorithm With Finite Element-Boundary Element Coupling[J]. Applied Mathematics and Mechanics, 2006, 27(4): 463-469.

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A Domain Decomposition Algorithm With Finite Element-Boundary Element Coupling

1.
Department of Engineering Mechanics, Chongqing University, Chongqing 400030, P. R. China;

Received Date: 2004-12-09
Rev Recd Date: 2005-12-05
Publish Date: 2006-04-15

Abstract

Abstract

A domain decomposition algorithm coupling the finite element and the boundary element is presented.It essentially involves subdivision of the analyzed domain into sub-regions being indepen dently modeled by the two methods,i.e.,the finite element method (FEM) and the boundary element method(BEM).The original problem was restored with continuity and equilibrium conditions being satisfied on the interface of the two sub-regions using an iterative algorithm.To speed up the conver gence rate of the iterative algorithm,a dynamically changing relaxation parameter during iteration was introduced.An advantage of the proposed algorithm is that the locations of the nodes on the interface of the two sub-domains can be inconsistent.The validity of the algorithm is demonstrated by the con sistence of the results of a numerical example obtained by the proposed method and those by the FEM,the BEM and a present finite element-boundary element (FE-BE) coupling method.
- finite element method,
- boundary element method,
- finite element-boundary element coupling,
- domain decomposition

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References(10)

References

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