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Analysis of entropy generation in AA7072-methanol and AA7072+AA7075-methanol flow near a parabolic surface

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  • Salahuddin, T.
  • Imtiaz, Ikram
  • Khan, Mair

Abstract

This article presents a study of nanofluid and hybrid nanofluid near a parabolic surface under the influence of heat generation and MHD. AA7072 and AA7075 are treated as nano particles while mathanol is used as a base fluid. We incorporated aluminum alloy of AA7072 in a base fluid for nanofluid and AA7072+AA7075 in base fluid for hybrid nanofluid. AA7072 and AA7075 manipulated in this study are uniquely manufactured to possess high heat transfer features. AA7072 alloy is a combined mixture of zinc and aluminium with some metallic elements such as copper, silicon, and ferrous. Similarly AA7075 is a compounded mixture of zinc, magnesium, ferrous, and silicon. By using similarity transformations, the PDEs are transmuted into ODEs. Furthermore, the transmuted equations are than interpreted numerically in MATLAB using Bvp4c. The graphical analysis is performed for different parameters to check the behaviour of velocity and temperature profiles. Velocity field attains increasing behaviour by an accretion in volume fractionϕ1for both methanol+AA7072(nanofluid) and methanol+AA7072+AA7075(hybrid nanofluid). The velocity profile for methanol+AA7072 is higher than methanol+AA7072+AA7075. By increasing magnetic field parameter M, the velocity componentf′(ψ)proceeds diminish trend for both methanol+AA7072 and methanol+AA7072+AA7075. But velocity field for methanol+AA7072 is moderate than methanol+AA7072+AA7075. The influence of heat generation parameterγshows rising trend in temperature profile for both fluids. But heat generation parameterγis more effective for hybrid nanofluid. Moreover, an entropy generation rate is also evaluated.

Suggested Citation

  • Salahuddin, T. & Imtiaz, Ikram & Khan, Mair, 2022. "Analysis of entropy generation in AA7072-methanol and AA7072+AA7075-methanol flow near a parabolic surface," Applied Mathematics and Computation, Elsevier, vol. 413(C).
    • Handle: RePEc:eee:apmaco:v:413:y:2022:i:c:s0096300321007001
    DOI: 10.1016/j.amc.2021.126616
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    References listed on IDEAS

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    1. Tlili, Iskander & Bhatti, M.M. & Hamad, Samir Mustafa & Barzinjy, Azeez A. & Sheikholeslami, M. & Shafee, Ahmad, 2019. "Macroscopic modeling for convection of Hybrid nanofluid with magnetic effects," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 534(C).
    2. Jin, Xin & Lin, Guiping & Zeiny, Aimen & Jin, Haichuan & Bai, Lizhan & Wen, Dongsheng, 2019. "Solar photothermal conversion characteristics of hybrid nanofluids: An experimental and numerical study," Renewable Energy, Elsevier, vol. 141(C), pages 937-949.
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