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Double stratification effects on mixed convection flow of couple stress fluid in a non-Darcy porous medium with heat and mass fluxes

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Abstract

This paper analyzes the flow, heat, and mass transfer characteristics of the mixed convection on a vertical plate with uniform and constant heat and mass fluxes in a doubly stratified non-Darcy porous medium saturated with couple stress fluid. The nonlinear governing equations and their associated boundary conditions are initially cast into dimensionless forms by pseudo-similarity variables. The resulting system of equations is then solved numerically using the Keller-box method. The numerical results are compared and found to be in good agreement with previously published results on special cases of the problem. The obtained results are displayed graphically to illustrate the effect of the couple stress, mixed convection, stratification parameters, and Forchheimer number on the dimensionless velocity, wall temperature, and wall concentration. The numerical values of heat and mass transfer rates for different values of governing parameters are also tabulated.

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Authors and Affiliations

  1. Department of Mathematics, National Institute of Technology Puducherry, Karaikal, 609605, India

    K. Kaladhar

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  1. K. Kaladhar
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Correspondence to K. Kaladhar.

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Communicated by Ruben Spies.

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Kaladhar, K. Double stratification effects on mixed convection flow of couple stress fluid in a non-Darcy porous medium with heat and mass fluxes. Comp. Appl. Math. 36, 611–626 (2017). https://doi.org/10.1007/s40314-015-0248-x

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  • DOI: https://doi.org/10.1007/s40314-015-0248-x

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