Rheology of bioconvective stratified Eyring-Powell nanofluid over a surface with variable thickness and homogeneous-heterogeneous reactions

The suspension of nanoparticles into the conventional heat transfer fluids has been sampled as means of improving heat transfer efficacy of fluid. The current communication is aimed to discuss the unequal diffusion coefficients of reactant A (bulk fluid) and reactant B (catalyst at the wall) for the Eyring-Powell liquid motion over a surface with variable thickness. The effects such as variable fluid properties, stratification and gyrotactic microorganisms have been considered into account. The equations governing the fluid motion are transformed to the ordinary differential equations with the appropriate similarity transformations. The solutions of the system of transformed governing equations have been developed using the reliable numerical technique Runge-Kutta integration. It is concluded from the current study that, when gyrotactic microorganisms density and thermal stratifications considered as 0.1, the augmentation of Eyring-Powell fluid parameter enhances the velocity distribution and diminution of temperature distribution. Furthermore, when homogeneous reaction parameter rises from 0.1 to 1.0, a conspicuous augmentation is noticed in both concentration distribution of homogeneous and bulk distribution of heterogeneous at the wall.

Automated summary

The suspension of nanoparticles into conventional heat transfer fluids can improve heat transfer efficiency. This study investigates the unequal diffusion coefficients of reactant A (bulk fluid) and reactant B (catalyst at the wall) for Eyring-Powell liquid motion over a surface with variable thickness, considering factors such as variable fluid properties, stratification, and gyrotactic microorganisms. The governing equations for fluid motion are transformed into ordinary differential equations using similarity transformations, and the solutions are obtained using the numerical technique Runge-Kutta integration. The study finds that an increase in the Eyring-Powell fluid parameter enhances velocity distribution and reduces temperature distribution when gyrotactic microorganisms density and thermal stratifications are considered as 0.1. Moreover, an increase in the homogeneous reaction parameter from 0.1 to 1.0 significantly augments both the concentration distribution of homogeneous and the bulk distribution of heterogeneous at the wall.