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Article type: Research Article
Authors: Abdelmoneim, Mohameda; | Eldabe, Nabil Tawfika | Abouzeid, Mohamed Yahyaa | Ouaf, Mahmoud E.a
Affiliations: [a] Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Roxy, Cairo, Egypt
Correspondence: [*] Corresponding author: Mohamed Abdelmoneim, Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Roxy, 11757, Cairo, Egypt. E-mail: supermaged93@gmail.com, mohamedmaged@edu.asu.edu.eg
Abstract: In this study, we focused on the heat transfer through a uniformly inclined rectangular duct caused by the electro-osmotic peristaltic flow of an unsteady non-Newtonian nanofluid. With couple stress, the fluid obeys the Papanastasiou model. The flow is through a porous medium that follows Darcy’s law in a modified form. In addition, Dufour and Soret effects, mixed convection, the impacts of a chemical reaction, and the effects of viscous couple stress dissipation are all considered. The governing equations that explain the velocity, temperature, and concentration of nanoparticles are simplified when wave transformation is used. The homotopy perturbation method was used to solve these equations analytically. Additionally, a collection of figures is used to discuss and visually illustrate the consequences of the physical characteristics. In fact, the modified Darcy’s law makes the velocity gradient appear in the momentum equation, which increases the contribution of the velocity gradient to the velocity profile. In addition, the electro-osmotic parameter and Helmholtz-Smoluchowski velocity have a significant impact on the velocity gradient’s direction, as well as the velocity gradient’s ability to be either positive or negative, depending on their values. In addition, in the case of forced convection, the values of the Nusselt number and the Sherwood number are highly affected by the value of Helmholtz–Smoluchowski velocity. The current findings have applications in biology and medicine, particularly in cancer therapy, which involves peristaltic blood pumps(arteries) and suspended gold nanoparticles (nanofluid). According to our knowledge, no prior studies have merged the couple stress Papanastasiou model and the modified Darcy’s law.
Keywords: Non-Newtonian fluid, nanofluid, peristaltic flow, electro-osmotic flow, modified Darcy’s law
DOI: 10.3233/JAE-220287
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 72, no. 3, pp. 253-277, 2023
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