Abstract
Study of the hydraulic and thermal boundary layers is a major part of the investigation of any heat transfer problem. In the case of free and forced convection over a surface, heat transfer can be improved significantly by altering the fluid's flow within the boundary layer with the objective of reducing the boundary layer thickness. The technique which is used in this study for this purpose is the oscillation of the heated plate. The two important variables are therefore the oscillation velocity and frequency. In this article, first forced convection heat transfer over a stationery plate is studied for a fixed flow velocity to verify the accuracy of the calculations and to determine the details of the numerical computations in terms of grid distribution and convergence. Using the conclusions of this part of the study, forced convection over an oscillating heated plate is then investigated for a range of oscillation frequencies and velocities. The results of these numerical computations are compared with our theoretical results. Good agreement between these results is reported.