The influence of thermal radiation on the flow and heat transfer within Newtonian liquid film over an
unsteady stretching sheet with and without thermocapillarity is examined. The governing non-linear partial
differential equations describing the problem are reduced to a system of nonlinear ordinary differential
equations using similarity transformation, which is solved numerically for different values of the thermal
radiation parameter and the thermocapillarity parameter. The results show that the dimensionless velocity,
the film thickness and the local Nusselt number increase as the thermocapillarity parameter increases,
while the free surface temperature decreases with increasing the thermocapillarity parameter. Also, both
the dimensionless temperature and the free surface temperature increase and the local Nusselt number
decreases as the thermal radiation parameter increases. |
