RÉSUMÉ

This article analyzes a mathematical model for the steady, mixed convection heat and mass transfer along a semi-infinite vertical plate embedded in a micropolar fluid in the presence of a first-order chemical reaction and radiation. A uniform magnetic field is applied normal to the plate. The plate is maintained with variable surface heat and mass fluxes. The governing nonlinear partial differential equations and their associated boundary conditions are transformed into a system of coupled nonlinear ordinary differential equations using similarity transformations and then solved numerically using the Keller box method. The numerical results are compared and found to be in good agreement with previously published results as special cases of the present investigation. The nondimensional velocity, microrotation, temperature, concentration profiles, the rate of heat transfer, the rate of mass transfer, the skin friction coefficient, and the wall couple stress at the plate are presented graphically for different values of coupling number, Prandtl number, Schmidt number, magnetic parameter, radiation parameter, and chemical reaction parameter.