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Influence of vertical vibrations on the separation of a binary mixture in a horizontal porous layer heated from below

Elhajjar, Bilal and Mojtabi, Abdelkader and Charrier-Mojtabi, Marie-Catherine Influence of vertical vibrations on the separation of a binary mixture in a horizontal porous layer heated from below. (2009) International Journal of Heat and Mass Transfer, 52 (1-2). 165-172. ISSN 0017-9310

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Official URL: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.05.033

Abstract

We study the influence of vertical high-frequency and small-amplitude vibrations on the separation of a binary mixture saturating a shallow horizontal porous layer heated from below. The monocellular flow obtained for a separation ratio w > wmono > 0 leads to a migration of the species towards the two vertical boundaries of the cell. The 2D direct numerical simulations and the linear stability of the averaged governing equations analysis show that the vertical vibrations delay the transition from monocellular flow to multicellular flow. The vibrations also decrease the value of wmono, which allows species separation for a wide variety of binary mixtures.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.05.033
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: imft imft
Deposited On:05 Jan 2009 13:25

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