RADIATION EFFECTS ON OSCILLATING VERTICAL PLATE IN THE PRESENCE OF FIRST ORDER CHEMICAL REACTION WITH VARIABLE TEMPERATURE

An exact investigation is performed to study the unsteady flow past an infinite vertical oscillating plate with variable temperature and mass diffusion, in the presence of thermal radiation and homogeneous chemical reaction of first order. The fluid considered here is a gray, absorbing-emitting radiation but a non-scattering medium. The solution of the dimensionless governing equations has been obtained by the Laplace transform method for velocity,temparature,concentration when the plate is oscillating harmonically in its own plane. The effects of temperature, concentration and velocity are discussed in graphical format for different physical parameters like phase angle, radiation parameter, chemical reaction parameter, Schmidt number, mass Grashof number,thermal Grashof number and time. It has been found that the velocity increases with decreasing phase angle . It is also observed that the velocity increases with decreasing thermal radiation parameter or chemical reaction parameter.