Abstract
The unavailability of wasted energy due to the irreversibility in the process is called the entropy generation. An irreversible process is a process in which the entropy of the system is increased. The second law of thermodynamics is used to define whether the given system is reversible or irreversible. Here, our focus is how to reduce the entropy of the system and maximize the capability of the system. There are many methods for maximizing the capacity of heat transport. The constant pressure gradient or motion of the wall can be used to increase the heat transfer rate and minimize the entropy. The objective of this study is to analyze the heat and mass transfer of an Eyring-Powell fluid in a porous channel. For this, we choose two different fluid models, namely, the plane and generalized Couette flows. The flow is generated in the channel due to a pressure gradient or with the moving of the upper lid. The present analysis shows the effects of the fluid parameters on the velocity, the temperature, the entropy generation, and the Bejan number. The nonlinear boundary value problem of the flow problem is solved with the help of the regular perturbation method. To validate the perturbation solution, a numerical solution is also obtained with the help of the built-in command NDSolve of MATHEMATICA 11.0. The velocity profile shows the shear thickening behavior via first-order Eyring-Powell parameters. It is also observed that the profile of the Bejan number has a decreasing trend against the Brinkman number. When ηi → 0 (i = 1, 2, 3), the Eyring-Powell fluid is transformed into a Newtonian fluid.
Highlights
The study in non-Newtonian fluids gets much attention of researchers due to its great importance in medical sciences, industries, and biological outcomes
Various non-Newtonian constitutive models have been presented by scientists and researchers such as the Sisko-fluid model, the Casson fluid model, the FENE-P fluid model, the Power-law fluid model, the viscoelastic fluid model, the micropolar fluid model, and the Eyring-Powell fluid model[1,2,3,4,5,6,7,8,9,10]
The flow and heat transfer of an Eyring-Powell fluid in a porous channel was investigated by Khan et al.[15]
Summary
The study in non-Newtonian fluids gets much attention of researchers due to its great importance in medical sciences, industries, and biological outcomes. Ali et al.[12] discussed the heat and mass transfer of an Eyring-Powell fluid in a pipe under the effect of viscous dissipation. They used the perturbation and shooting methods to handle the nonlinear boundary-value problems. Riaz et al.[16] analyzed the effect of heat and mass transfer of an Eyring-Powell fluid within a rectangular complaint channel. They used the perturbation method to find the analytical expression of velocity and temperature fields. Waqas et al.[17] used the generalized Fourier’s and Fick’s laws to discuss the heat and mass transfer of an Eyring-Powell fluid over a stretching cylinder
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
