Slip velocity effect on a non-Newtonian power-law fluid over a moving permeable surface with heat generation
• 2011
Publication Information
Authors
Mostafa A.A. Mahmoud
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publication.type
International
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Abstract
The effects of surface slip and heat generation (absorption) on the flow and heat transfer of
a non-Newtonian power-law fluid on a continuously moving surface have been examined.
The governing nonlinear partial differential equations describing the problem are transformed
to nonlinear ordinary differential equations using suitable transformations. The
transformed ordinary differential equations are solved numerically using the fourth order
Runge–Kutta method with the shooting technique. Graphical solutions for the dimensionless
velocity and the dimensionless temperature are presented and discussed for various
values of the slip parameter, the heat generation or absorption parameter and the Eckert
number. The results show that the local skin-friction coefficient is decreased as the slip parameter
increased. Also, it is found that the local Nusselt number is decreased as the slip
parameter or the heat generation parameter increased and the heat absorption parameter
has the effect of increasing the local Nusselt number.
a non-Newtonian power-law fluid on a continuously moving surface have been examined.
The governing nonlinear partial differential equations describing the problem are transformed
to nonlinear ordinary differential equations using suitable transformations. The
transformed ordinary differential equations are solved numerically using the fourth order
Runge–Kutta method with the shooting technique. Graphical solutions for the dimensionless
velocity and the dimensionless temperature are presented and discussed for various
values of the slip parameter, the heat generation or absorption parameter and the Eckert
number. The results show that the local skin-friction coefficient is decreased as the slip parameter
increased. Also, it is found that the local Nusselt number is decreased as the slip
parameter or the heat generation parameter increased and the heat absorption parameter
has the effect of increasing the local Nusselt number.
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