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A multiplicative Schwarz method with active subdomains for transient convection-diffusion problems

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2010-CMNE-SR-blanc.pdf (2,912Mb)
 
10.1002/cnm.1239
 
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hdl:2117/8769

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Sandoval Solis, M. Luisa
Rodríguez Ferran, AntonioMés informacióMés informacióMés informació
Document typeArticle
Defense date2009-02-04
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
An efficient algorithm to find the solution of transient convection–diffusion problems with dominant convection is presented. The main idea is to follow the solution front and activate those subdomains where the solution satisfies a given threshold value. We call this novel method ‘the multiplicative Schwarz method with active subdomains’, and it is motivated by the solution of a problem from activated-carbon filters used in the automotive industry to reduce emissions. Numerical experiments show that this method is more efficient than the preconditioned conjugate gradient method with an incomplete Cholesky factorization.
CitationSandoval, M.; Rodríguez, A. A multiplicative Schwarz method with active subdomains for transient convection-diffusion problems. "Communications in numerical methods in engineering", 04 Febrer 2009. 
URIhttp://hdl.handle.net/2117/8769
DOI10.1002/cnm.1239
ISSN1069-8299
Publisher versionhttp://www3.interscience.wiley.com/cgi-bin/fulltext/122267221/PDFSTART
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