Irreversibility process characteristics of variant viscosity and conductivity on hybrid nanofluid flow through Poiseuille microchannel: A special case study

Abstract

The model based upon the Poiseiulle flow of hybrid nanofluid within a micro channel for the inclusion of varying viscosity and thermal conductivity. The suggested model is designed for the use of variable properties of the hybrid nanofluid embedding with the metal and oxide nanoparticles such as Cu and Al2O3 submerged in the base fluids i.e. water and Ethylene glycol (EG). For the preparation nanofluid the base fluid contains a combination of 20% water and 80% of EG. In addition to that, the interpretation of entropy generation due to the thermal irreversibility process of the system is conducted. The suitable choice of the similarity transformation is used for the dimensional form of the present problem to distort into non-dimensional form. Further, the numerical treatment is made employing Runge-Kutta-Fehlberg technique for the solution of the set of transformed equations. The physical behavior of the contributing parameters on the flow phenomena along with the Entropy and Bejan number are presented through graphs. The tabular result depicts the numerical results of the rate coefficients for these parameters. Finally, the comparative study is carried out to validate the current result with the earlier work that shows a greater concurrency.