Heat and mass transfer in mixed convection MHD micropolar fluid flow due to non-linear stretched sheet in porous medium with non-uniform heat generation and absorption

In this paper, mixed convection flow is considered with micropolar fluid in the presence of the magnetic field. In addition, the flow is defied with a non-linear stretching sheet through a porous medium. Non-uniform heat generation/absorption as well as chemical reaction are studied. The similarity transformation is used to change the governing equations. The Homotopy Analysis Method is used to solve the system of ODE. The impacts of several important parameters on velocity profiles, angular velocity profiles, temperature profiles and concentration profiles are represented graphically. With the help of tables, the coefficients of Skin friction, Nusselt number, and local Sherwood number are also anticipated and shown. When the new finding results were compared to earlier findings, they revealed a high-level agreement. The findings show that the velocity profile and angular velocity profiles are enhanced by thermal radiation parameter and material parameter. When Biot number and Eckert number are raised, the temperature profiles increase noticeably. Furthermore, when the chemical reaction parameter is raised, the concentration profile is reduced and it is improved as Soret number is increased. Heat transfer rate increased as thermal radiation parameter increased and decreased as Biot number decreased for both linear and non-linear stretching.

Automated summary

This paper investigates the mixed convection flow of a micropolar fluid in the presence of a magnetic field, with a non-linear stretching sheet through a porous medium. Non-uniform heat generation/absorption and chemical reaction are also taken into consideration. The governing equations are transformed using the similarity transformation and solved using the Homotopy Analysis Method. The effects of various parameters on velocity profiles, angular velocity profiles, temperature profiles, and concentration profiles are graphically presented. Skin friction, Nusselt number, and local Sherwood number coefficients are also determined and shown. The findings are in good agreement with earlier studies, revealing that thermal radiation parameter and material parameter enhance velocity and angular velocity profiles, Biot number and Eckert number significantly increase temperature profiles, chemical reaction parameter reduces concentration profile, and Soret number improves concentration profile. Heat transfer rate increases with thermal radiation parameter and decreases with Biot number for both linear and non-linear stretching.