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     Research Journal of Applied Sciences, Engineering and Technology


Double Diffusion in Cavity Due to Lower Half Concentration

Hasan Mulla ali, Abdullah A.A.A. Al-Rashed and Abdulwahab A. Alnaqi
Department of Automotive and Marine Engineering Technology, College of Technological Studies, the Public Authority for Applied Education and Training, Kuwait
Research Journal of Applied Sciences, Engineering and Technology  2016  12:913-917
http://dx.doi.org/10.19026/rjaset.13.3764  |  © The Author(s) 2016
Received: October 8, 2016  |  Accepted: November 1, 2016  |  Published: December 15, 2016

Abstract

Aim of present paper is to study the heat and mass transfer in porous cavity with respect to high concentration at lower half of left vertical surface. This is an extension of work where high concentration is supplied at upper half of cavity. The right vertical surface is maintained at constant concentration Cc such that Cw>Cc. The left and right vertical surfaces of cavity are maintained at isothermal temperature Tw and Tc where Tw>Tc. Darcy model is used to describe the flow in porous medium. The governing partial differential equations are non-dimensionalised to reduce the number of variables involved. Finite element method is used to convert the governing equations into a set of algebraic equations and then solved for the square porous domain meshed with triangular elements.

Keywords:

Double diffusion, finite element method, lower half concentration, porous media,


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Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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