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Special Topics & Reviews in Porous Media: An International Journal
ESCI SJR: 0.277 SNIP: 0.52 CiteScore™: 1.3

ISSN Print: 2151-4798
ISSN Online: 2151-562X

Special Topics & Reviews in Porous Media: An International Journal

DOI: 10.1615/SpecialTopicsRevPorousMedia.2018024579
pages 347-364

HEAT AND MASS TRANSFER ON MAGNETOHYDRODYNAMIC CHEMICALLY REACTING FLOW OF A MICROPOLAR FLUID THROUGH A POROUS MEDIUM WITH HALL EFFECTS

M Veera Krishna
Dept of Mathematics, Rayalaseema University, Kurnool, Andhra Pradesh, India - 518007
B. V. Swarnalathamma
Department of Science and Humanities, JB institute of Engineering and Technology, Moinabad, Hyderabad, Telangana-500075, India
Ali J. Chamkha
Mechanical Engineering Department, Prince Sultan Endowment for Energy and Environment, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Saudi Arabia; RAK Research and Innovation Center, American University of Ras Al Khaimah, P.O. Box 10021, Ras Al Khaimah, United Arab Emirates

ABSTRACT

We investigate heat and mass-transfer effects on an unsteady flow of a chemically reacting micropolar fluid over an infinite vertical porous plate in the presence of an inclinedmagnetic field with angle of inclination α, Hall current effect, and thermal radiation taken into account. Governing equations are solved analytically using perturbation technique. With the help of graphs, we discuss the effects of various parameters on velocity, microrotation, temperature, and concentration fields within the boundary layer. The coefficient of skin friction and rates of heat and mass transfer in terms of Nusselt and Sherwood numbers are presented numerically in tabular form. In the presence of a uniform magnetic field, increasing strength of applied magnetic field decelerates fluid motion along the wall of the plate inside the boundary layer. An increase in Hall current and radiation parameter augments momentum and thermal boundary-layer thickness and decelerates microrotational velocity.


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