Free convective flow between vertical porous plates with periodic heat input

A suction/injection controlled free convective motion of a viscous incompressible fluid between two periodically heated infinite vertical parallel plates is presented. The temperature and velocity fields are separated into steady and periodic parts and the resulting second order ordinary differential equations solved to obtain the solution to the problem. The influence of each governing parameter is discussed with the aid of contour maps. The significant result from this study is that temperature is higher near the plate with injection while velocity is more enhanced near the plate with suction. It is also interesting to note that for large values of suction, the nature of the flow is that of constant heating of the plates, while for large values of Strouhal number, the flow behaves as if there was no suction/injection at the plates [11].