This study investigates the unsteady natural convection and mass transfer flow of viscous reactive, heat generating/absorbing\nfluid in a vertical channel formed by two infinite parallel porous plates having temperature dependent thermal conductivity.The\nmotion of the fluid is induced due to natural convection caused by the reactive property as well as the heat generating/absorbing\nnature of the fluid. The solutions for unsteady state temperature, concentration, and velocity fields are obtained using semi-implicit\nfinite difference schemes. Perturbation techniques are used to get steady state expressions of velocity, concentration, temperature,\nskin friction, Nusselt number, and Sherwood number. The effects of various flow parameters such as suction/injection (?), heat\nsource/sinks (S), Soret number (Sr), variable thermal conductivity (?), Frank-Kamenetskii parameter (?), Prandtl number (Pr),\nand nondimensional time (t) on the dynamics are analyzed.The skin friction, heat transfer coefficients, and Sherwood number are\ngraphically presented for a range of values of the said parameters.
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