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Similarity Analysis for Effects of Variable Diffusivity and Heat Generation/Absorption on Heat and Mass Transfer for a MHD Stagnation-Point Flow of a Convective Viscoelastic Fluid over a Stretching Sheet with a Slip Velocity

Author

Listed:
  • H. M. El-Hawary
  • Mostafa A. A. Mahmoud
  • Reda G. Abdel-Rahman
  • Abeer S. Elfeshawey

Abstract

A mathematical analysis has been carried out for stagnation-point heat and mass transfer of a viscoelastic fluid over a stretching sheet with surface slip velocity, concentration dependent diffusivity, thermal convective boundary conditions, and heat source/sink. The governing partial differential equations are reduced to a system of nonlinear ordinary differential equations using Lie group analysis. Numerical solutions of the resulting ordinary differential equations are obtained using shooting method. The influences of various parameters on velocity, temperature, and mass profiles have been studied. Also, the effects of various parameters on the local skin-friction coefficient, the local Nusselt number, and the local Sherwood number are given in graphics form and discussed.

Suggested Citation

  • H. M. El-Hawary & Mostafa A. A. Mahmoud & Reda G. Abdel-Rahman & Abeer S. Elfeshawey, 2013. "Similarity Analysis for Effects of Variable Diffusivity and Heat Generation/Absorption on Heat and Mass Transfer for a MHD Stagnation-Point Flow of a Convective Viscoelastic Fluid over a Stretching Sh," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-11, May.
    • Handle: RePEc:hin:jnlmpe:239847
    DOI: 10.1155/2013/239847
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