Persistent currents in mesoscopic cavities and the effect of level crossings as random variables

We determine the effect of radiation on the forced convection flow of an optically dense incompressible fluid along a heated horizontal stretching surface. The boundary-layer equations are transformed to ordinary differential equations containing a radiation parameter R*, velocity exponent parameter M, Prandtl number Pr, and surface temperature parameter teta. The effect of these parameters are studied. Graphical results for the velocity and temperature Aare presented and discussed.