Influence of vertical vibrations on the separation of a binary mixture in a horizontal porous layer heated from below - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Heat and Mass Transfer Année : 2009

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

Résumé

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.
Fichier principal
Vignette du fichier
Elhajjar_8106.pdf (520.93 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03561303 , version 1 (08-02-2022)

Identifiants

Citer

Bilal Elhajjar, Abdelkader Mojtabi, Marie-Catherine Charrier-Mojtabi. Influence of vertical vibrations on the separation of a binary mixture in a horizontal porous layer heated from below. International Journal of Heat and Mass Transfer, 2009, 52 (1-2), pp.165-172. ⟨10.1016/j.ijheatmasstransfer.2008.05.033⟩. ⟨hal-03561303⟩
17 Consultations
8 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More