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Volume 11, 2020
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Special Topics & Reviews in Porous Media: An International Journal
DOI: 10.1615/SpecialTopicsRevPorousMedia.2018026943
pages 203223
HEAT AND MASS TRANSFER ON FREE CONVECTIVE FLOW OF AMICROPOLAR FLUID THROUGH A POROUS SURFACE WITH INCLINED MAGNETIC FIELD AND HALL EFFECTS
M. Veera Krishna
Department of Mathematics, Rayalaseema University, Kurnool, Andhra Pradesh  518007,
India
P. V. S. Anand
Department of Mathematics, Rayalaseema University, Kurnool, Andhra Pradesh 518007, India
Ali J. Chamkha
Department of Mechanical Engineering, Prince Sultan Endowment for Energy and
Environment, Prince Mohammad Bin Fahd University, AlKhobar 31952, Kingdom of Saudi
Arabia; RAK Research and Innovation Center, American University of Ras Al Khaimah, United Arab Emirates, 10021
RESUMO
The effects of heat and mass transfer on free convective flow of micropolar fluid were studied over an infinite vertical porous plate in the presence of an inclined magnetic field with an angle of inclination α with a constant suction velocity and taking Hall current into account. The dimensionless governing equations are reduced to a system of linear differential equations, making use of a regular perturbation method, and equations are solved analytically. The control of various parameters on the flow is discussed graphically. This present study is of immediate interest in geophysical, medicine, biology, and all those processes that are greatly embellished by a strong magnetic field with a low density of the gas. The resultant velocity trim downs with increasing suction parameter and viscosity ratio, while it enhances with heat source parameter. The microrotational velocity rises with increasing Hall parameter. The temperature increases with increasing heat radiation parameter and reduces with suction parameter. Concentration diminishes with increasing chemical reaction parameter. The rate of heat transfer increase with Prandtl number and the rate of mass transfer enhances with the chemical reaction parameter.
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