MHD micropolar hybrid nanofluid flow over a flat surface subject to mixed convection and thermal radiation

Hybrid nanofluids play a significant role in the advancement of thermal characteristics of pure fluids both at experimental and industrial levels. This work explores the mixed convective MHD micropolar hybrid nanofluid flow past a flat surface. The hybrid nanofluid flow is composed of alumina and silver nanoparticles whereas water is used as a base fluid. The plate has placed vertical in a permeable medium with suction and injection effects. Furthermore, viscous dissipation, thermal radiation and Joule heating effects are taken into consideration. Specific similarity variables have been used to convert the set of modeled equations to dimension-free form and then has solved by homotopy analysis method (HAM). It has revealed in this investigation that, fluid motion upsurge with growth in magnetic field effects and mixed convection parameter and decline with higher values of micropolar factor. Micro-rotational velocity of fluid is upsurge with higher values of micropolar factor. Thermal flow behavior is augmenting for expended values of magnetic effects, radiation factor, Eckert number and strength of heat source. The intensification in magnetic strength and mixed convection factors has declined the skin friction and has upsurge with higher values of micropolar parameter. The Nusselt number has increased with the intensification in magnetic effects, radiation factor and Eckert number.

Automated summary

Hybrid nanofluids, composed of alumina and silver nanoparticles in water, play a significant role in improving the thermal characteristics of pure fluids. This study investigated the mixed convective MHD micropolar hybrid nanofluid flow past a flat surface placed in a permeable medium with suction and injection effects. The results showed that fluid motion increases with the growth in magnetic field effects and mixed convection parameter, but decreases with higher values of micropolar factor. The thermal flow behavior is enhanced for higher values of magnetic effects, radiation factor, Eckert number, and strength of heat source.