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Heat and Mass Transfer

, Volume 39, Issue 4, pp 305–312 | Cite as

Thermal radiation effects on MHD forced convection flow adjacent to a non-isothermal wedge in the presence of a heat source or sink

  • Ali J. Chamkha
  • Mir Mujtaba
  •  A. Quadri
  • Camille Issa
Original

Abstract.

This work is focused on the steady-state, hydromagnetic forced convective boundary-layer flow of an incompressible Newtonian, electrically-conducting and heat-generating/absorbing fluid over a non-isothermal wedge in the presence of thermal radiation effects. The wedge surface is assumed permeable so as to allow for possible wall suction or injection. Also included in the model are the effects of viscous dissipation, Joule heating and stress work. The governing partial differential equations for this investigation are derived and transformed using a non-similarity transformation. In deriving the governing equations, a temperature-dependent heat source or sink term is employed and the Rossland approximation for the thermal radiation term is assumed to be valid. The obtained non-similar equations are solved numerically by an implicit, iterative, tri-diagonal finite-difference method. Comparisons with previously published work on various special cases of the problem are performed and the results are found to be in excellent agreement. Numerical results for the velocity and temperature profiles for a prescribed magnetic parameter as well as the development of the local skin-friction coefficient and local Nusselt number with the magnetic parameter are presented graphically and discussed. This is done in order to elucidate the influence of the various parameters involved in the problem on the solution.

Keywords

Nusselt Number Forced Convection Magnetic Parameter Local Nusselt Number Sink Term 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Ali J. Chamkha
    • 1
  • Mir Mujtaba
    • 1
  •  A. Quadri
    • 1
  • Camille Issa
    • 2
  1. 1.Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, Safat, 13060 – Kuwait
  2. 2.Department of Civil Engineering, Lebanese American University, Byblos, Lebanon

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