The present study demonstrates a model of micropolar nano fluid with aluminium oxide nanoparticles flowing over an angled stretching surface. This research also studies how the heat source affects the thermal and mass transfer phenomena of micropolar nanofluid. The core equations are changed into single-variable ODEs by using similarity variables. The transformed equations are evaluated numerically in MATLAB with the help of bvp4c solver. The velocity distribution increases with growing Thermal Grashof number and material parameter, and it decreases with increasing porosity and Solutal Grashof number. The thermal distribution improves by improving the heat source/sink parameter and nanoparticle concentration. On changing the values of radiation, the graph of Sherwood number and skin friction with thermophoresis parameter increases, while the Nusselt number versus thermophoresis graph declines. The demonstration of the impact of various parameters on water-based micropolar nanofluid provides more efficient thermal transfer. The results of this research have important consequences for several technical applications, including medical research and energy storage systems. This research added nanoparticle alumina to the fluid model of earlier literature and combined the Williamson fluid with the micropolar fluid. This research also studies how Darcy Forcheimer and viscous dissipation affect the micropolar liquid in a permeable medium. Williamson Micropolar nanofluid flow past an inclined stretching sheet. Examines thermal and mass exchange characteristics of micropolar nanofluid in the presence of Darcy-Forchheimer Porous medium. Heat and mass transfer profile increases with improving values of thermophoresis, while it decreases with rising suction factor.
Verma et al. (2026) studied this question.