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Mass transfer effects on the unsteady mhd radiative– convective flow of a micropolar fluid past a vertical porous plate with variable heat and mass fluxes

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Journal of Engineering Physics and Thermophysics Aims and scope

The problem of unsteady two-dimensional laminar flow of a viscous incompressible micropolar fluid past a vertical porous plate in the presence of a transverse magnetic field and thermal radiation with variable heat and mass fluxes is considered. The free stream velocity is subjected to exponentially increasing or decreasing small perturbations. A uniform magnetic field acts perpendicularly to a porous surface where a micropolar fluid is absorbed with a suction velocity varying with time. The Rosseland approximation is used to describe radiative heat transfer in the limit of optically thick fluids. The effects of the flow parameters and thermophysical properties on the velocity and temperature fields across the boundary layer are investigated. The effects of various parameters on the velocity, microrotation velocity, temperature, and concentration profiles are given graphically, and the values of the skin friction and couple stress coefficients are presented.

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Authors and Affiliations

  1. Department of Mathematics, Acharya Nagarjuna University Ongole Campus, Ongole, A.P. 523 001, India

    M. Gnaneswara Reddy

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  1. M. Gnaneswara Reddy
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Correspondence to M. Gnaneswara Reddy.

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Published in Inzhenerno-Fizicheskii Zhurnal, Vol. 86, No. 2, pp. 406–415, March–April, 2013.

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Reddy, M.G. Mass transfer effects on the unsteady mhd radiative– convective flow of a micropolar fluid past a vertical porous plate with variable heat and mass fluxes. J Eng Phys Thermophy 86, 431–441 (2013). https://doi.org/10.1007/s10891-013-0852-9

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  • DOI: https://doi.org/10.1007/s10891-013-0852-9

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