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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2012005634
pages 215-243

SOLUTIONS FOR MHD NATURAL CONVECTION FLOW OF A PARTICULATE SUSPENSION THROUGH A VERTICAL CHANNEL WITH ASYMMETRIC THERMAL BOUNDARY CONDITIONS

Ali J. Chamkha
Department of Mechanical Engineering, Prince Sultan Endowment for Energy and Environment, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Kingdom of Saudi Arabia; RAK Research and Innovation Center, American University of Ras Al Khaimah, United Arab Emirates, 10021
Seham S. Al-Rashidi
Manufacturing Engineering Department, The Public Authority for Applied Education and Training, P. O. Box 42325, Shuweikh 70654, Kuwait

RESUMO

A continuum model for two-phase (fluid/particle) flow induced by natural convection is developed and applied to the problem of steady natural convection MHD flow of a particulate suspension through an infinitely long vertical channel in the presence of heat generation or absorption effects. The walls of the channel are heated asymmetrically such that one of the channel walls is maintained at a constant heat flux, while the other is maintained at a constant temperature. The boundary conditions borrowed from the rarefied gas dynamics are employed for the particle-phase wall velocity conditions. Various closed-form solutions for different special cases are obtained. A parametric study of some physical parameters involved in the problem is done to illustrate the influence of these parameters on the flow and thermal aspects of the problem.


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