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Entropy analysis of EMHD non-Newtonian fluid flow induced by Riga plate with slip and convective boundary phenomena

Author

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  • Mohamed Abd El-Aziz

    (Department of Mathematics, Faculty of Science, King Khalid University, Abha 61421, Saudi Arabia)

  • Ahmed A. Afify

    (Department of Mathematics, Deanship of Educational Services, Qassim University, P.O. Box 6595 Buraidah)

Abstract

Our paper is consecrated to show the influence of variable fluid properties in EMHD non-Newtonian power-law fluid along a moving Riga plate. Slip velocity phenomenon is considered at the surface which is convectively heated. Entropy analysis is elaborated employing thermodynamic second relation. The governing nonlinear PDEs are altered into ODEs through adequate propinquity transformations which have been solved numerically via the shooting method with the fourth-order Runge–Kutta algorithm through Mathematica software (bvp4c). Characteristics of different basic parameters on velocity, temperature, entropy generation and Bejan number are highlighted through graphs. The outcomes exhibit that the minimum entropy rate in the flow system can be obtained either with rising viscosity parameter and slip parameter or declining dimensionless parameter and thermal conductivity parameter. The entropy rate is minimal for dilatant fluid when compared to pseudo plastic fluid with the most governing parameters. Contrast behavior on the thermal field is noticed for larger values of viscosity parameter and thermal conductivity parameter.

Suggested Citation

  • Mohamed Abd El-Aziz & Ahmed A. Afify, 2020. "Entropy analysis of EMHD non-Newtonian fluid flow induced by Riga plate with slip and convective boundary phenomena," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 31(05), pages 1-18, March.
    • Handle: RePEc:wsi:ijmpcx:v:31:y:2020:i:05:n:s0129183120500667
    DOI: 10.1142/S0129183120500667
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