Large scale thermal-solid coupling analysis using inexact balancing domain decomposition
In this research, a system of thermal-solid coupling analysis is developed with the implementation of Inexact Balancing Domain Decomposition with a diagonal scaling (IBDD-DIAG) in both thermal and solid analysis. The IBDD-DIAG is an improved version of Balancing Domain Decomposition (BDD), where an...
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BRAC University
2011
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| オンライン･アクセス: | http://hdl.handle.net/10361/891 |
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10361-8912019-09-29T05:48:05Z Large scale thermal-solid coupling analysis using inexact balancing domain decomposition Mukaddes, Abul Mukid Mohammad Shioya, Ryuji Finite element analysis Thermal-solid coupling problems Domain decomposition method Incomplete balancing domain decomposition In this research, a system of thermal-solid coupling analysis is developed with the implementation of Inexact Balancing Domain Decomposition with a diagonal scaling (IBDD-DIAG) in both thermal and solid analysis. The IBDD-DIAG is an improved version of Balancing Domain Decomposition (BDD), where an incomplete factorization based parallel direct method is employed to solve a coarse space problem, and the diagonal-scaling is employed to precondition local fine space problems instead of the Neumann-Neumann preconditioner. The developed system performed heat conductive analysis to have temperature distributions in solid models and then performed the structural analysis to see deformation or expansion due to temperature differences. Both of the analyses employed the Hierarchical Domain Decomposition Method (HDDM) with parallel IBDD-DIAG. It is shown that the iterative procedure converges rapidly and the convergence is independent of the number of subdomains, namely, numerical scalability is satisfied. The present system is implemented on massively parallel processors and succeeds in solving a thermal-solid coupling problem of 12 millions of nodes. 2011-05-05T08:25:19Z 2011-05-05T08:25:19Z 2010 Article 1811-3079 http://hdl.handle.net/10361/891 BRAC University Journal, BRAC University;Vol. 7, No. 1 & 2, 2010, p. 1-7. application/pdf BRAC University |
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Brac University |
| collection |
Institutional Repository |
| topic |
Finite element analysis Thermal-solid coupling problems Domain decomposition method Incomplete balancing domain decomposition |
| spellingShingle |
Finite element analysis Thermal-solid coupling problems Domain decomposition method Incomplete balancing domain decomposition Mukaddes, Abul Mukid Mohammad Shioya, Ryuji Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| description |
In this research, a
system of thermal-solid coupling analysis is developed with the implementation of Inexact Balancing Domain Decomposition with a diagonal scaling (IBDD-DIAG) in both thermal and solid analysis. The IBDD-DIAG is an improved version of Balancing Domain Decomposition (BDD), where an incomplete factorization based parallel direct method is employed to solve a coarse space problem, and the diagonal-scaling is employed to precondition local fine space problems instead of the Neumann-Neumann preconditioner. The developed system performed heat conductive analysis to have temperature distributions in solid models and then performed the structural analysis to see deformation or expansion due to temperature differences. Both of the analyses employed the Hierarchical Domain Decomposition Method (HDDM) with parallel IBDD-DIAG. It is shown that the iterative procedure converges rapidly and the convergence is independent of the number of subdomains, namely, numerical scalability is satisfied. The present system is implemented on massively parallel processors and succeeds in solving a thermal-solid coupling problem of 12 millions of nodes. |
| format |
Article |
| author |
Mukaddes, Abul Mukid Mohammad Shioya, Ryuji |
| author_facet |
Mukaddes, Abul Mukid Mohammad Shioya, Ryuji |
| author_sort |
Mukaddes, Abul Mukid Mohammad |
| title |
Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| title_short |
Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| title_full |
Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| title_fullStr |
Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| title_full_unstemmed |
Large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| title_sort |
large scale thermal-solid coupling analysis using inexact balancing domain decomposition |
| publisher |
BRAC University |
| publishDate |
2011 |
| url |
http://hdl.handle.net/10361/891 |
| work_keys_str_mv |
AT mukaddesabulmukidmohammad largescalethermalsolidcouplinganalysisusinginexactbalancingdomaindecomposition AT shioyaryuji largescalethermalsolidcouplinganalysisusinginexactbalancingdomaindecomposition |
| _version_ |
1814307331625713664 |