Interpretation of entropy generation in Williamson fluid flow with nonlinear thermal radiation and first‐order velocity slip

Abstract

This research article investigates the impacts of magnetohydrodynamics (MHD), nonlinear thermal radiation, Darcy‐Forchheimer porous medium, viscous dissipation, first‐order velocity slip, and convective boundary condition on the entropy generation optimization in flow of non‐Newtonian fluid (Williamson fluid) towards a flat and stretchable surface. A general entropy equation is derived for thermal heat irreversibility, porosity irreversibility, Joule heating irreversibility, and fluid friction irreversibility. The bvp4c (built‐in‐shooting) technique is utilized to solve the governing equations for the entropy generation. Our obtained results highlight that enhancement in the thermal radiation and magnetic causes an abrupt change in the entropy generation rate. Moreover, the heat transfer rate and velocity gradient (skin friction) are calculated numerically subject to pertinent parameter, and the results are displayed in tabular form.

Numerical Analysis of the Mixed Flow of a Non-Newtonian Fluid over a Stretching Sheet with Thermal Radiation

“…However, they observed that non-Newtonian fluids caused by stretching sheets provide a significant engineering and technological problem because of their widespread engineering and technological applications in a variety of industrial and engineering processes [14][15][16][17][18][19]. In references [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38], you can find some additional interesting contributions on Newtonian and non-Newtonian nanofluid flow and its applications in manufacturing. The fundamental purpose of this research is to look at the heat transfer properties of an Eyring-Powell fluid flow caused by a stretching sheet immersed in a porous media and influenced by thermal radiation.…”

Comments on “Interpretation of entropy generation in Williamson fluid flow with nonlinear thermal radiation and first‐order velocity slip”

“…The Darcy-Forchheimer number (Fr) must be dimensionless because the terms in Equation 1 are dimensionless. Qayyum et al 1 defined the Darcy-Forchheimer number (Fr) (equation 13 in the paper) as:…”

Unsteady Radiative Maxwell Fluid Flow over an Expanding Sheet with Sodium Alginate Water-Based Copper-Graphene Oxide Hybrid Nanomaterial: An Application to Solar Aircraft

“…Muhammad et al [32] researched the time-dependent squeezing flow of a hybrid nanofluid (having CNTs + CuO/water) and a nanofluid (having CNTs/water) with the melting impact and viscid dissipation to designate the behavior of heat exchange, entropy formation, and bean amount. To optimize the creation of entropy of Williamson fluid flow towards a plain and stretchy surface, Qayyum et al [33] tested the influence of hydromagnetic, nonlinear thermal radiation, Darcy-Forchheimer porous mode, viscous dissipation, 1st-order motion slip, and convective boundary circumstance. To manage the flow system heat transfer, Saeed et al [34] employed the slip conditions created by a whirling disc, thermal stratification, and nonlinear thermal radiation in the solution of the Darcy-Forchheimer flow for TiO 2 -Ag/H 2 O hybrid nanofluid.…”