The effects of non-uniform heat generation/
absorption and viscous dissipation on heat transfer
of a non-Newtonian power-law fluid on a nonlinearly
stretching surface have been examined. The
governing nonlinear partial differential equations describing
the problem are transformed to a system of
non-linear ordinary differential equations by using
suitable similarity transformation. The transformed
system of ordinary differential equations is solved numerically
using fourth order Runge-Kutta method with
the shooting technique. Graphical solutions for the dimensionless
temperature are presented and discussed
for various values of the power-law index parameter,
the Prandtl number, the heat generation/absorption parameter
and the Eckert number. The results show that
the local Nusselt number is reduced with increasing
the Eckert number or the heat generation parameter,
whereas the heat absorption parameter has the effect
of enhancing the local Nusselt number. |
