Squeezing flow of Cu-TiO₂/H₂Ohybrid nanofluid with activation energy and chemical reaction in a Darcy-Forchheimerporous medium

Abstract

This paper presents numerical simulations of an unsteady squeezed flow of water-based hybrid incompressible nanofluid containing titanium oxide $\left(Ti{O}_2\right)$ and copper (Cu) as nanosolid particles between two parallel disks embedded in a Darcy-Forchheimer porous medium in presence of thermal slip and velocity slip together with a homogenous chemical reaction. The prime focus of the present investigation is to explore the velocity distribution, heat and mass transfer of the flow under the mentioned geometrical configurations. The leading PDEs is reduced into similarity non-linear ODEs with the help of relevant similarity transformation and then solved by the 4th order R-K integration technique accompanied with the shooting procedure. After numerical designs, the impact of diverse related factors on flow characteristics of the stream has been demonstrated via proper charts and graphs and described the consequences with apposite perspective. Some of the notable conclusions of the present study is that fluid temperature increases with growing values of activation energy and thermal slip, whereas the fluid velocity decrease with developing values of the porosity parameter, inertial parameter and squeezing number. Also thickness of concentration boundary layer leads to decrease with an intensification of squeezing number and chemical reaction parameter.

KEYWORDS:

• Hybrid nanofluid
• squeezing flow
• Darcy-Forchheimer porous medium
• slip boundary conditions
• activation energy

Acknowledgements

The authors wish to deliver immeasurable grace to the Hon’ble Reviewers for their valuable comments and advices to better the grade of the present paper.

Disclosure statement

No potential conflict of interest was reported by the author(s).