Thermal Radiation Energy Performance on Stagnation-Point Flow in the Presence of Base Fluids Ethylene Glycol and Water over Stretching Sheet with Slip Boundary Condition

Imran Abbas, Shahid Hasnain, Nawal A. Alatawi, Muhammad Saqib and Daoud S. Mashat ()
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Imran Abbas: Department of Mathematics, Air University, Islamabad 44000, Pakistan
Shahid Hasnain: Department of Mathematics and Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Nawal A. Alatawi: Department of Mathematics and Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Muhammad Saqib: Department of Mathematics, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 48800, Pakistan
Daoud S. Mashat: Department of Mathematics and Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Energies, 2022, vol. 15, issue 21, 1-23

Abstract: Nanoparticles are useful in improving the efficiency of convective heat transfer. The current study addresses this gap by making use of an analogy between Al 2 O 3 and γ -Al 2 O 3 nanoparticles in various base fluids across a stretched sheet conjunction with f. Base fluids include ethylene glycol and water. We address, for the first time, the stagnation-point flow of a boundary layer of γ -Al 2 O 3 nanofluid over a stretched sheet with slip boundary condition. Al 2 O 3 nanofluids employ Brinkman viscosity and Maxwell’s thermal conductivity models with thermal radiations, whereas γ -Al 2 O 3 nanofluids use viscosity and thermal conductivity models generated from experimental data. For the boundary layer, the motion equation was solved numerically using the fourth-order Runge–Kutta method and the shooting approach. Plots of the velocity profile, temperature profile, skin friction coefficient and reduced Nusselt number are shown. Simultaneous exposure of the identical nanoparticles to water and ethylene glycol, it is projected, would result in markedly different behaviors with respect to the temperature profile. Therefore, this kind of research instills confidence in us to conduct an analysis of the various nanoparticle decompositions and profile structures with regard to various base fluids.

Keywords: Al 2 O 3; ?-Al 2 O 3; stagnation-point flow; nanofluids; stretching sheet; slip boundary condition; shooting method (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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