Numerical investigation of heat transfer characteristics for blood/water-based hybrid nanofluids in free convection about a circular cylinder

This paper investigates hybrid nanofluids flowing around a circular cylinder of free convection under the constant surface heat flux.  Nanoparticles of copper oxides, Gold, and Aluminum (CuO, Au, Al) are considered to support the heat transfer performance of blood/water-based hybrid nanofluids. The...

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Bibliographic Details
Published in:Journal of Mechanical Engineering and Sciences 2022-06, Vol.16 (2), p.8931-8942
Main Authors: Alwawi, Firas, Swalmeh, Mohammed, Sulaiman, Ibrahim, Yaseen, Nusayba, Alkasasbeh, Hamzeh, Al Soub, Tarik
Format: Article
Language:English
Subjects:
Aluminum
Blood
circular cylinder
Circular cylinders
Coefficient of friction
constant surface heat flux
Copper oxides
Free convection
Gold
Heat flux
Heat transfer
hybrid-nanofluid
Nanofluids
Nanoparticles
Nonlinear differential equations
Partial differential equations
Physical properties
Skin friction
Temperature distribution
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Summary:This paper investigates hybrid nanofluids flowing around a circular cylinder of free convection under the constant surface heat flux.  Nanoparticles of copper oxides, Gold, and Aluminum (CuO, Au, Al) are considered to support the heat transfer performance of blood/water-based hybrid nanofluids. The governing model for hybrid nanofluids which is in form of non-linear partial differential equations (PDEs) are first transformed to a more convenient form by similarity transformation approach then approximated numerically by the Keller box method. Several comparatives are performed in this work resulting in the superiority of the hybrid-nanofluid over regular nanofluid in terms of heat transfer rate, velocity, and local skin friction coefficient.  Findings confirmed that the surface temperature and temperature field are augmented, with increasing volume fraction for nanoparticles. Also, Gold nanoparticles give a higher result for all examined physical properties than Aluminum and copper oxides nanoparticles.
ISSN:2289-4659
2231-8380
DOI:10.15282/jmes.16.2.2022.10.0706