Entropy optimization of MHD hybrid nanofluid flow through a curved stretching sheet with thermal radiation and heat generation: Semi-analytical and numerical simulations

Abstract

The present study scrutinizes the significance of magnetohydrodynamics, thermal radiation, and heat transfer in the mixed convective two-dimensional flow, which is constituted of ( EG (30%) + water (70%), CuO, and MgO) hybrid nanofluid over a curved stretching sheet. Along with this Joule heating, viscous dissipation and heat generation are considered account. The governing non-linear coupled partial differential equations are converted into non-linear coupled ordinary differential equations and then the homotopy perturbation method is utilized. When compared to the numerical method (Runge–Kutta method), the homotopy perturbation method produces more precise and dependable results. For velocity, temperature, Bejan number, entropy generation, skin friction, and Nusselt number, graphical results are provided with the impact of active parameters. The velocity profile increases for higher values of curvature parameter, mixed convection parameter. The temperature profile rises when the thermal radiation parameter increases. Also temperature profile decreases when the values of thermal slip parameter and slip parameters increase. The skin friction coefficient is growing when the curvature parameter and the slip parameter both rises. When the magnetic parameter is increased the skin friction decreases. The current research can be applied in the areas such as transpiration, fiber coatings, coolants, heat exchangers, and other similar devices.

Entropy generation on Casson hybrid nanofluid over a curved stretching sheet with convective boundary condition: Semi-analytical and numerical simulations

“…21,33,34 Some important studies about entropy generation were also discussed. [35][36][37] The main aim of this research is to analyze the entropy generation on MHD Casson hybrid nanofluid flow over a curved stretching sheet. In this research, Tantalum (Ta) and Cobalt (Co) are considered as the nanoparticles, blood as the base fluid along with thermal radiation, mixed convection and heat generation are taken into account.…”

Entropy generation on EMHD Darcy-Forchheimer flow of Carreau hybrid nanofluid over a permeable rotating disk with radiation and heat generation: Homotopy perturbation solution

“…In biotechnology and the medical sciences, EMHD has been used for a variety of things, such as micro-mixing of physiological samples, cancer treatment, nano-drug delivery devices, surgical intervention, cancer operations, and transporting genes. 21–23 Reddy 24 investigated biomedical aspects of entropy generation on electromagnetohydrodynamic blood flow of hybrid nanofluid with nonlinear thermal radiation and non-uniform heat source/sink.…”