Melting and chemical reaction effects in stagnation point flow of micro-polar fluid towards a stretching sheet in porous medium in the presence of non-uniform heat source/sink

In this present paper, we have investigated a numerical solution to the melting heat transfer on micropolar fluid flow over a stretchable porous medium. The partial differential equations of governing flow are changed to dimensionless ordinary differential equations by using similarity transformation and then solved by the Runge-Kutta-Fehlberg fourth- A nd fifth-order (RKF-45) method with shooting technique. The novelty of the present study is that it considers the influence of chemical reaction and nonuniform heat source/sink in stagnation point flow over a stretching sheet. The study looks at the impacts of different nondimensional parameters, namely chemical reaction parameter, melting parameter, stretching parameter, and space- A nd temperature-dependent heat source/sink parameters on velocity, microrotation, temperature, and concentration distributions. Additionally, the skin-friction coefficient, Nusselt number, and Sherwood number are examined in detail and the results are depicted graphically and in tabular form to illustrate the physical importance of the study. The results show that velocity enhances with stretching parameter. The temperature reduces as melting parameter rises, while temperature increases with the stretching parameter and the space- A nd temperature-dependent heat source/sink parameters. The impact of the chemical reaction parameter is to increase the mass transfer rate.