Effect of the Chemical Reaction and Injection on Flow Characteristics in an Unsteady Upward Motion of an Isothermal Plate

The transient incompressible viscous fluid flow regime past a semiinfinite isothermal plate under conditions of natural convection is studied numerically. The solution obtained takes into account the firstorder homogeneous chemical reaction and the mass flux through the plate. The calculated velocity profile is in good agreement with the known exact solution. Velocity, temperature, and concentration profiles are presented. It is shown that the fluid velocity decreases with increasing chemical reaction parameter. The distributions of local and averaged values of skin friction and Nusselt and Sherwood numbers are analyzed.