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Lie group analysis of hydromagnetic flow and heat transfer of a power-law fluid over stretching surface with temperature-dependent viscosity and thermal conductivity

Author

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  • Mohamed Abd El-Aziz

    (Helwan University, Faculty of Science, Mathematics Department, P. O. Box, 11795, Cairo, Egypt†Department of Mathematics, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia)

  • Ahmed A. Afify

    (Helwan University, Faculty of Science, Mathematics Department, P. O. Box, 11795, Cairo, Egypt‡Department of Mathematics, Deanship of Educational Services, Qassim University, P. O. Box 6595, Buraidah 51452, Saudi Arabia)

Abstract

The symmetry group of MHD boundary layer flow and heat transfer of a non-Newtonian power-law fluid over a stretching surface under the effects of variable fluid properties is investigated. The similarity equations with the corresponding boundary conditions are solved numerically by using a shooting method with the fourth order Runge–Kutta integration scheme. Comparisons of the numerical method with the existing results in the literature are made and obtained an excellent agreement. It is observed that the heat transfer rate diminishes with an increase in magnetic parameter and variable thermal conductivity parameter. Further, the opposite influence is found with an increase in variable viscosity parameter.

Suggested Citation

  • Mohamed Abd El-Aziz & Ahmed A. Afify, 2016. "Lie group analysis of hydromagnetic flow and heat transfer of a power-law fluid over stretching surface with temperature-dependent viscosity and thermal conductivity," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 27(12), pages 1-20, December.
    • Handle: RePEc:wsi:ijmpcx:v:27:y:2016:i:12:n:s0129183116501503
    DOI: 10.1142/S0129183116501503
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