Mathematical modeling and numerical computation for the entropy based radiated hybrid (Polyethylene glycol+Water/Zirconium dioxide+Magnesium oxide) nanofluid flow

The objective of this article is to discuss the entropy rate in spinning nanofluid (PEG-H 2 O/ZrO 2 ) and hybrid (PEG-H 2 O/ZrO 2 -MgO) nanofluid subject to stretched surface. Here mixture of water (H 2 O) and polyethylene glycol (C 2n H 4n + 2 O n+1 ) are used as base fluid. Zirconium dioxide (ZrO 2 ) and magnesium oxide (MgO) are considered as nanoparticles. Heat expression is modeled by implementation of heat flux, heat source and viscous dissipation. Furthermore, the entropy generation problem is addressed by second law of thermodynamics. Nonlinear dimensionless differentials systems are developed by suitable variables. The given dimensionless systems are solved by using numerical technique (ND-solve method). Effects of influential variables on fluid flow, temperature, Bejan number and entropy rate for both (PEG-H 2 O/ZrO 2 ) and (PEG-H 2 O/ZrO 2 -MgO) fluids are graphically examined. Higher approximation of volume fractions rises the velocity profile, while reverse impact seen for Bejan number. An increment in rotation variable corresponds to boosts up velocity. A similar scenario is seen for thermal field and entropy rate through radiation effect. An opposite impact is seen for Bejan number and entropy rate through Brinkman number. An augmentation in temperature is seen for Eckert number. Furthermore, we noticed that heat transport in hybrid nanofluid (PEG-H 2 O/ZrO 2 -MgO) is higher than compared to nanofluid (PEG-H 2 O/ZrO 2 ).