Stagnation point flow of magnetized Cu–Cuo–water nano liquid via a porous dissipative stretching surface: A theoretical investigation

Abstract

Nanotechnology is progressively being used to increase heat transfer rates by employing an efficient homogenous combination of nanoparticles. Inspired by these developments, a simulation investigation of porous media subjected to stagnation point flow under the effects of dissipation and uneven thermal sink/generation boundary layer is performed. Dimensionless forms of the governing equations are obtained by adopting a model of Tiwari–Das nanofluid to study the fluid flow considering water-based Cu and Cuo nanoparticles. A coupled ordinary derivative invariant model is obtained from the transformed partial differentiation equations. A computational shooting method with a fourth-order Runge–Kutta scheme is used to offer solutions to the ODEs (Ordinary Differential Equations). This study was done to understand the impacts of pertinent physical terms on the flow characteristics in porous media. Additionally, the wall quantities, thermal, and concentration diffusion are examined and discussed, and the output is presented in plots and tables. The limiting cases are considered and briefly addressed as compared with the existing results. The solution outputs revealed that the heat propagation is momentously influenced by the volume and size of the nanoparticles. The fluid molecular bond is strengthened by the rising induced magnetic field. This investigation is treasured in extensive applications that are not restricted to the physical sciences and engineering.

Keywords:

• Nanofluid
• nanoparticles
• porous dissipation
• stagnation point flow
• uneven heat source/sink

Disclosure statement

No potential conflict of interest was reported by the authors.