Irreversibility analysis in stagnation point flow of tri-hybrid nanofluid over a rotating disk; application of kinetic energy

Abstract

The study of entropy minimization dramatically enhances the reliability of kinetic, mechanical, and electrical components. Numerous applications, comprising catalyst energy, heat exchanger, pump, and electronic cooling, promote entropy minimization. The current analysis presents an investigation of the stagnation point flow of second law analysis in a stretchable rotating disk with a ternary hybrid nanofluid. MoS2,SiO2 and ZrO2 nanoparticles are considered with thermal physical properties, and Eg is used as the ordinary fluid. The motive of this study is to scrutinize the impact of kinetic energy fluctuation for a ternary hybrid nanofluid over a rotating disk. Heat is accounted for by adding thermal radiation and convective. After being transmitted into ODEs, the BVP4c technique is applied to solve the fluid flow mathematical model. Results are depicted using graphs, and the effects of the relevant parameter on the different profiles, such as radial velocity F’(ζ), axial velocity G(ζ), temperature profile Θ(ζ), entropy generation Ng and Bejan number Be. The unsteady parameter has been shown to boost the axial velocity and temperature distribution while reducing radial velocity. Moreover, entropy generation and Bejan number increase with larger values of γ1 and Br. Justification of the existing study is completed by comparing the present findings with the obtainable outcomes in the literature and finding an adequate agreement.