High-order ILU preconditioners for CFD problems

Andrew Chapman; Yousef Saad; Larry Wigton

doi:10.1002/1097-0363(20000730)33:6<767::AID-FLD28>3.0.CO;2-C

High-order ILU preconditioners for CFD problems

Andrew Chapman, Yousef Saad, Larry Wigton

Computer Science and Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

This paper tests a number of incomplete lower-upper (ILU)-type preconditioners for solving indefinite linear systems, which arise from complex applications such as computational fluid dynamics (CFD). Both point and block preconditioners are considered. The paper focuses on ILU factorization that can be computed with high accuracy by allowing liberal amounts of fill-in. A number of strategies for enhancing the stability of the factorizations are examined. Copyright (C) 2000 John Wiley and Sons, Ltd.

Original language	English (US)
Pages (from-to)	767-788
Number of pages	22
Journal	International Journal for Numerical Methods in Fluids
Volume	33
Issue number	6
DOIs	https://doi.org/10.1002/1097-0363(20000730)33:6<767::AID-FLD28>3.0.CO;2-C
State	Published - Jul 2000

Keywords

Block LU
Dropping strategies
Incomplete LU
Krylov sub-space methods
Preconditioning

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10.1002/1097-0363(20000730)33:6<767::AID-FLD28>3.0.CO;2-C

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AB - This paper tests a number of incomplete lower-upper (ILU)-type preconditioners for solving indefinite linear systems, which arise from complex applications such as computational fluid dynamics (CFD). Both point and block preconditioners are considered. The paper focuses on ILU factorization that can be computed with high accuracy by allowing liberal amounts of fill-in. A number of strategies for enhancing the stability of the factorizations are examined. Copyright (C) 2000 John Wiley and Sons, Ltd.

KW - Block LU

KW - Dropping strategies

KW - Incomplete LU

KW - Krylov sub-space methods

KW - Preconditioning

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JF - International Journal for Numerical Methods in Fluids

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ER -

High-order ILU preconditioners for CFD problems

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Keywords

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