Importance of entropy generation and infinite shear rate viscosity for non-Newtonian nanofluid

Abstract

This study addresses the novel characteristics of infinite shear rate viscosity and entropy generation in magneto-mixed convective flow of cross-nanomaterial toward a stretched surface. Moreover, analysis of current research work has been prepared for Brownian moment and thermophoresis deposition. Radiation and viscous dissipation aspects are accounted. More specifically, roles of activation energy and Lorentz force on nanofluids transportation are examined. ODEs are acquired from PDEs via implementation of suitable transformations. Numerical algorithm is implemented to tackle the nonlinear system for numerical results. Discussion on rheological parameters involved in current research work is presented through graphs. Results demonstrate the significant rise in temperature and nanoparticles concentration with the intensification of Brownian moment aspects. More specially, we perceived that entropy rate is significantly affected by radiation parameter and Brinkman number. Intensification in entropy rate is observed for rising values of magnetic parameter, radiation parameter and Brinkman number.

Analysis of entropy generation and activation energy in unsteady double diffusive flow over a stretching cylinder

“…Khan and Alzahrani 14 explained the nonlinear slip flow of fluid toward a surface, considering entropy generation and activation energy. Sultan et al 15 described the importance of entropy generation and infinite shear rate viscosity for a fluid. Hayat et al 16 focused on Cattaneo–Christov flux theories, encompassing both heterogeneous and homogeneous reactions.…”

Innovation modeling and simulation of thermal convective on cross nanofluid flow over exponentially stretchable surface

“…Furthermore, mechanical engineering perspective, the problematical rheological performance of shear-thinning and shear thickening fluid corresponding linearized law of viscosity as illustrated by non-Newtonian fluids. These types of fluid can be considered through higher order equations by using the power model [ [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] ]. From the last decades, the researchers are examining about heat and mass transport in non-Newtonian fluid flow identified the furthermost significant issues.…”

Impact of Activation Energy in Darcy-Forchheimer Flow of Cross Nanofluid over a Radial Stretching Surface with Viscous Dissipation and Joule Heating

“…They reported the variations in both shear thinning and shear thickening fluids with the impact of reaction rate parameter and it shows the declined the concentration whereas it heightened for mounting values of activation energy parameter. Few recent investigations explore the characteristics of activation energy for various fluids [25][26][27][28][29]. In many practical applications the stretching sheet may not be linear, exponential because it can be stretched radially also in this context axisymmetric flow of fluids towards a radially stretched surface has got special interest due to its industrial applications like polymer extrusion, glass blowing etc.…”