Title

Parallelized Iterative Domain Decomposition Boundary Element Method For Thermoelasticity

Keywords

Boundary element method; Domain decomposition; Parallel computation; Thermoelasticity

Abstract

The boundary element method (BEM) requires only a surface mesh to solve thermoelasticity problems, however, the resulting matrix is fully populated and non-diagonally dominant. This poses serious challenges for large-scale problems due to storage requirements and the solution of large sets of non-symmetric systems of equations. In this article, an effective and efficient domain decomposition, or artificial sub-sectioning technique, along with a region-by-region iteration algorithm particularly tailored for parallel computation to address these issues are developed. The domain decomposition approach effectively reduces the condition number of the resulting algebraic systems, while increasing efficiency of the solution process and decreasing memory requirements. The iterative process converges very efficiently while offering substantial savings in memory. The iterative domain decomposition technique is ideally suited for parallel computation. Results demonstrate the validity of the approach by providing solutions that compare closely to single-region BEM solutions and benchmark analytical solutions.

Publication Date

12-1-2007

Publication Title

WIT Transactions on Modelling and Simulation

Volume

44

Number of Pages

149-158

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.2495/BE070151

Socpus ID

38849182357 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/38849182357

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