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Unconditional nonlinear stability for convection in a porous medium with vertical throughflow

Hill, Antony A.

Authors

Profile image of Antony Hill

Antony Hill Antony.Hill@uwe.ac.uk
College Dean of Learning and Teaching



Abstract

Linear and nonlinear stability analyses of vertical throughflow in a fluid saturated porous layer, which is modelled using a cubic Forchheimer model, are studied. To ensure unconditional nonlinear results are obtainable, and to avoid the loss of key terms, a weighted functional is used in the energy analysis. The linear instability and nonlinear stability thresholds show considerable agreement when the vertical throughflow is small, although there is substantial deterioration of this agreement as the vertical throughflow increases.

Journal Article Type Article
Publication Date Oct 1, 2007
Journal Acta Mechanica
Print ISSN 0001-5970
Electronic ISSN 1619-6937
Publisher Springer (part of Springer Nature)
Peer Reviewed Peer Reviewed
Volume 193
Issue 3-4
Pages 197-206
DOI https://doi.org/10.1007/s00707-007-0473-5
Keywords unconditional nonlinear stability, convection, porous medium, vertical throughflow
Public URL https://uwe-repository.worktribe.com/output/1033008
Publisher URL http://dx.doi.org/10.1007/s00707-007-0473-5
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