Insight into Nonlinear Radiative Maxwell Nanofluid Flow with Reactive Species Transport and Activation Energy

This study is motivated by the growing demand for fluid flow optimization and efficient thermal management in modern engineering systems that require enhanced heat and mass transfer performance. Such improvements are particularly relevant to industrial processes involving porous stretching surfaces, including coating, drying, polymer extrusion, and thermal processing. This work examines coupled heat and mass transfer in the Darcy–Forchheimer flow of a Maxwell nanofluid over a linearly stretching porous sheet. The model includes activation energy, thermal radiation, and the Cattaneo–Christov model for heat and mass flux, together with convective and mass flux boundary conditions. Using similarity transformations, the governing equations are converted into a coupled nonlinear system of ordinary differential equations for the velocity, temperature, and concentration distributions. The resulting boundary value problem is solved using a shooting based numerical scheme, and the obtained solutions are verified against MATLAB shooting and bvp4c computations. A detailed parametric study is performed to assess the influence of thermophoresis, magnetic field effects, Brownian motion, and the Lewis number on the boundary-layer structure and the Nusselt number. The findings are presented in tables and figures to support physical interpretation of the transport behavior.