The effect of the Hall current on unsteady free convection of an electrically conducting incompressible viscous fluid past an accelerated vertical porous plate with internal heat absorption/generation in the presence of various species (H2, CO2, H2O, and NH3) undergoing a first-order chemical reaction in a uniform transverse magnetic field is studied. The role of pertinent parameters characterizing the flow field is discussed. The governing equations are solved using the Hhn(x) functions. It is revealed that heat generation coupled with injection results in a backflow rise. A linearly varying velocity of the plate causes a sudden rise or fall of the velocity in the vicinity of the plate, whereas an asymptotically varying velocity leads to a uniform fall. The presence of chemical reaction increases the secondary velocity by 40%.
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Published in Inzhenerno-Fizicheskii Zhurnal, Vol. 87, No. 3, pp. 605–615, May–June, 2014.
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Kar, M., Sahoo, S.N. & Dash, G.C. Effect of Hall Current and Chemical Reaction on MHD Flow Along an Accelerated Porous Flat Plate with Internal Heat Absorption/Generation. J Eng Phys Thermophy 87, 624–634 (2014). https://doi.org/10.1007/s10891-014-1053-x
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DOI: https://doi.org/10.1007/s10891-014-1053-x