This article is devoted to describing the boundary layer flow and heat transfer for an electrically
conducting Casson fluid over a permeable stretching surface with second-order slip velocity model and
thermal slip conditions in the presence of internal heat generation/absorption and thermal radiation. The
basic equations governing the flow and heat transfer are in the form of partial differential equations; the
same have been reduced to a set of highly non-linear ordinary differential equations by applying suitable
similarity transformations. Exact solution corresponding to momentum equation is obtained, and, in the
case of no slip conditions, we get the exact solutions for both momentum and energy equation. The
resulting similarity equations are solved numerically by shooting method. Comparisons with previously
published work are performed and the results are found to be in excellent agreement. In the present
work the effect of magnetic parameter, suction/injection parameter, Casson parameter, slip parameters,
radiation parameter, internal heat generation/absorption parameter and the Prandtl number on flow and
heat transfer characteristics have been discussed. Also, the local skin-friction coefficient and the local
Nusselt number at the sheet are computed and discussed. It is found that the temperature rises to a higher
value when the Casson parameter increases but the reverse is true for the velocity distribution. Finally,
increasing the velocity and thermal slip parameters makes the rate of heat transfer decrease. |
