g-Jitter induced free convection near a stagnation point

The effect of a small but fluctuating gravitational field, characteristic o f g-jitter, on the flow near the forward stagnation point of a two-dimensio nal symmetric body resulting from a step change in its surface temperature has been considered in this paper. The transformed equations are solved num erically by a very efficient finite-difference method known as the Keller-b ox technique to investigate the effects on the shear stress and rate of hea t transfer of variations in the Prandtl number, Pr, the forcing amplitude, a, and the forcing frequency, co. It has been found that these parameters a ffect considerably the shear stress and the rate of heat transfer.