A passive control strategy of a micropolar hybrid nanofluid flow over a convectively heated flat surface

In this report, the authors have presented a semi-analytical analysis on thermal convective magnetohydrodynamic flow of a water-based micropolar hybrid nanofluid comprising of Ag and CuO nanoparticles over a stagnant point region of a surface. Thermal convection and mass flux conditions are taken in flow problem. Additionally, the impacts of Brownian motion, chemical reaction, thermophoresis, heat source, and viscous dissipation are taken into account. Also, the Cattaneo-Christovo flux model is used to analyze the transportations of heat and mass. The problem formulation is transformed into dimensionless form by means of suitable similarity transformations. The homotopy analysis technique (HAM), which is semi-numerical approach that does not require small or large factors, is applied. The convergence of each profile of the flow functions are demonstrated in pictorial form. The code has been utilized in the MATHEMATICA 12.0 software. The results show that the growing micropolar factor reduces the velocity and micro-rotational distribution. Also, the coefficient of skin friction is a decreasing function of the magnetic factor. The growing magnetic factor upsurges the velocity distribution, where a dual impact of the magnetic factor on microrotation distribution is observed. The heat transfer rate is a reducing function of Eckert number, magnetic, Brownian as well as thermophoretic factors. Mass transportation rate has declined with growth in Brownian and thermophoresis factors.