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Persistent URL http://purl.org/net/epubs/work/42415412
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Record Id 42415412
Title A scalable approximate inverse block preconditioner for an incompressible magnetohydrodynamics model problem
Abstract We introduce a new approximate inverse preconditioner for a mixed finite element discretization of an incompressible magnetohydrodynamics (MHD) model problem. The derivation exploits the nullity of the discrete curl-curl operator in the Maxwell subproblem. We show that the inverse of the coefficient matrix contains zero blocks, and we use discretization considerations to further sparsify and obtain a practical preconditioner. We demonstrate the viability of our approach with a set of numerical experiments.
Organisation STFC , SCI-COMP
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Related Research Object(s): 46737768
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Language English (EN)
Type Details URI(s) Local file(s) Year
Preprint RAL Preprints RAL-P-2019-002, SIAM J Sci Comput STFC, 2019. RAL-P-2019-002.pdf 2019