A computational method for model reduction in index-2 dynamical systems for Stokes equations


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Output type: Journal article

UM6P affiliated Publication?: Yes

Author list: Chkifa A., Hamadi M.A., Jbilou K., Ratnani A.

Publisher: Elsevier

Publication year: 2021

Journal: Computers and Mathematics with Applications (0898-1221)

Volume number: 99

Start page: 171

End page: 181

Number of pages: 11

ISSN: 0898-1221

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113325269&doi=10.1016%2fj.camwa.2021.08.009&partnerID=40&md5=b1057a0f15cf99d3058bfbe5badb0d9b

Languages: English (EN-GB)


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Abstract

Our aim through this paper is to describe a Krylov based projection method in order to reduce high-order dynamical systems. We focus on differential algebraic equations (DAEs) of index-2 that arise from spatial discretization of Stokes equations. An efficient algorithm based on a projection technique onto an extended block Krylov subspace that appropriately allows us to construct a reduced order system is described. Numerical results are provided to confirm the performance of the derived method compared with other known ones. © 2021 Elsevier Ltd


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Last updated on 2021-24-11 at 23:16