LAUSR

This article studied concentration and thermal effects on a steady flow of a Magnetohydrodynamics reactive fluid driven by both pressure and temperature gradients through a porous medium. The fluid is assumed to undergo exothermic chemical reaction within the channel. The dimensionless coupled nonlinear ordinary differential governing equations of the problem are derived and solved using optimal homotopy analysis method (OHAM). The validation of OHAM’s results is done by carrying out the comparison of this result with those obtained using Chebyshev collocation method and a good agreement is found. The influences of controlling parameters on the fluid velocity, temperature, concentration and heat transfer rate are analyzed using graph and quantitatively discussed. It is observed from the computational results that an increase in nonlinear convective parameters significantly enhances both the velocity and temperature profiles, while it reduces the concentration profile. The usefulness of this study can be found in crude-oil refineries.