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Exact Solution Of Triple Diffusive Marangoniconvection In A Composite Layer


Exact Solution Of Triple Diffusive Marangoniconvection In A Composite Layer
Authors : R. SUMITHRA
Publication Date: 02-08-2012

Authors

Author(s):  R. SUMITHRA

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 5 (July - 2012)

e-ISSN:   2278-0181

Abstract

The Triple-Diffusive Marangoni-convection problem is investigated in a two layer system comprising an incompressible three component fluid saturated porous layer over which lies a layer of the same fluid. The lower surface of the porous layer is rigid and the upper free surface are considered to be insulating to temperature and solutes concentration perturbations. At the upper free surface, the surface tension effects depending on temperature and both the solute concentrations are considered. At the interface, the normal and tangential components of velocity, heat and solute concentrations and their fluxes are assumed to be continuous. The resulting eigenvalue problem is solved Exactly and an analytical expression for the Thermal Marangoni Number is obtained. The effect of variation of different physical parameters on the same is investigated in detail.

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