P. P. Nayak, Priya Mathur, S. R. Mishra
The study on micropolar fluid shows its importance because of its wide range of engineering and biomedical applications that include polymer processing, thermal insulation and blood flow analysis. The interaction of inertial drag with thermal radiation and chemical reaction also significantly influences the overall transport properties. Therefore, the present problem investigates the Darcy-Forchheimer drag with chemical reaction for the radiating polar flow through a curved stretching sheet. The model is employed for the microrotation of suspended particles, which provides a more realistic presentation. The nonlinear drag in porous media is characterised by the influence of the Darcy-Forchheimer term, whereas the insertion of radiation and homogeneous chemical reaction highlights the thermal and solutal profiles. The constitutive mathematical model for the various flow phenomena is transformed into a nonlinear ordinary system using suitable similarity rules, and further, the system is tackled numerically for the implementation of Runge–Kutta fourth-order shooting technique. The findings of this study show an optimising heat and mass transport in curved geometries encountered in the extrusion of polymer sheets. The observation reveals that with the increasing drag, combined with resistive magnetisation retards the velocity distribution, and the reacting species ensures the attenuation in the concentration distribution.