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A null space algorithm for mixed finite-element approximations of Darcy's equation

โœ Scribed by Arioli, Mario ;Manzini, Gianmarco

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
186 KB
Volume
18
Category
Article
ISSN
1069-8299

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โœฆ Synopsis

Abstract

A null space algorithm is considered to solve the augmented system produced by the mixed finiteโ€element approximation of Darcy's Law. The method is based on the combination of an orthogonal factorization technique for sparse matrices with an iterative Krylov solver. The computational efficiency of the method relies on a suitable stopping criterion for the iterative solver. We experimentally investigate its performance on a realistic set of selected application problems. Copyright ยฉ 2002 John Wiley & Sons, Ltd.

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