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Bidispersive thermal convection

Gentile, M.; Straughan, B.

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Authors

M. Gentile

B. Straughan



Abstract

We obtain the linear instability and nonlinear stability thresholds for a problem of thermal convection in a bidispersive porous medium with a single temperature. It is important to note that we show that the linear instability threshold is the same as the nonlinear stability one. This means that the linear theory is capturing completely the physics of the onset of thermal convection. This result contrasts with the general theory of thermal convection in a bidispersive porous material where the temperatures in the macropores and micropores are allowed be different. In that case the coincidence of the stability boundaries has not been proved.

Citation

Gentile, M., & Straughan, B. (2017). Bidispersive thermal convection. International Journal of Heat and Mass Transfer, 114, 837-840. https://doi.org/10.1016/j.ijheatmasstransfer.2017.06.095

Journal Article Type Article
Acceptance Date Jun 22, 2017
Online Publication Date Jul 4, 2017
Publication Date Jul 4, 2017
Deposit Date Mar 22, 2018
Publicly Available Date Mar 29, 2024
Journal International Journal of Heat and Mass Transfer
Print ISSN 0017-9310
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 114
Pages 837-840
DOI https://doi.org/10.1016/j.ijheatmasstransfer.2017.06.095

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