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Analysis of exponentially varying viscosity and thermal conductivity on a tangent hyperbolic fluid

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Abstract

We present an analysis of the significance of exponentially varying viscosity and thermal conductivity in the magnetohydrodynamic flow of a tangent hyperbolic fluid. The study assumes the combined impact of viscous dissipation, chemical reaction and variable transport properties on the flow. The model equations are reduced to a system of parabolic partial differential equations using a non-similar solution. We solve the coupled nonlinear partial differential equations using the multi-domain bivariate spectral quasi-linearisation method. Among other findings, the study shows that varying the viscosity reduces fluid flow resistance and this leads to an increase in the fluid velocity while the temperature and species concentration profiles decrease. The flow heat and mass transfer rates increase with the magnetic variable.

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Authors and Affiliations

  1. School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Scottsville, Private Bag X01, Pietermaritzburg, 3209, South Africa

    I. S. Oyelakin & P. Sibanda

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  1. I. S. Oyelakin
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  2. P. Sibanda
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Correspondence to I. S. Oyelakin.

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Oyelakin, I.S., Sibanda, P. Analysis of exponentially varying viscosity and thermal conductivity on a tangent hyperbolic fluid. SeMA 77, 257–273 (2020). https://doi.org/10.1007/s40324-020-00215-0

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  • DOI: https://doi.org/10.1007/s40324-020-00215-0

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