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Marangoni convection in a fluid saturated porous layer with a deformable free surface.

Md. Arifin, Norihan and Mohd Mokhtar, Nor Fadzillah and Suleiman, Mohamed and Ismail, Fudziah and Nazar, Roslinda (2009) Marangoni convection in a fluid saturated porous layer with a deformable free surface. World Academy of Science, Engineering and Technology, 50 . pp. 807-812. ISSN 2070-3724

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Official URL: http://www.waset.org/journals/waset/v50/v50-136.pd...

Abstract

The stability analysis of Marangoni convection in porous media with a deformable upper free surface is investigated. The linear stability theory and the normal mode analysis are applied and the resulting eigenvalue problem is solved exactly. The Darcy law and the Brinkman model are used to describe the flow in the porous medium heated from below. The effect of the Crispation number, Bond number and the Biot number are analyzed for the stability of the system. It is found that a decrease in the Crispation number and an increase in the Bond number delay the onset of convection in porous media. In addition, the system becomes more stable when the Biot number is increases and the Daeff number is decreases.

Item Type:Article
Keyword:Deformable; Marangoni; Porous; Stability.
Subject:Marangoni effect.
Subject:Fluid dynamics.
Subject:Porous materials.
Faculty or Institute:Faculty of Science
Publisher:World Academy of Science, Engineering and Technology (WASET)
ID Code:15547
Deposited By: Najwani Amir Sariffudin
Deposited On:15 Dec 2011 01:33
Last Modified:15 Dec 2011 01:33

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