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Heat transfer analysis of a hybrid nanofluid flow on a rotating disk considering thermal radiation effects

Heat transfer analysis of a hybrid nanofluid flow on a rotating disk considering thermal radiation effects

Authors :
Naif Abdulaziz M. Alkuhayli
Source :
Case Studies in Thermal Engineering, Vol 49, Iss , Pp 103131- (2023)
Publication Year :
2023
Publisher :
Elsevier, 2023.

Abstract

This study investigates heat transfer in a hybrid nanofluid that flows due to a rotating disk. The nanofluid contains copper and dioxide nanoparticles in water and is affected by a constant magnetic field. The study accounts for heat generation/absorption and thermal radiation and solves the governing equations using similarity transformations and the Shooting Method. The research reveals that the higher nanoparticle concentration in a fluid result in increased radial and azimuthal velocities due to improved convective heat transfer. This leads to higher fluid velocity and lower local skin friction coefficient. Heat generation/absorption and thermal radiation have a strong influence on the heat transfer process. Higher nanoparticle concentration, variable thermal conductivity parameter, and radiation parameter cause an increase in the temperature of the hybrid nanofluid. The local Nusselt number increases with an increase in the variable thermal conductivity parameter but decreases with nanoparticle concentration while increases with the thermal radiation parameter. Results from a special case analysis, which excluded certain parameters, closely agree with previous studies, confirming the validity of the solution. These findings can be useful in understanding heat transfer in similar scenarios, especially in energy engineering and thermal management.

Details

Language :
English
ISSN :
2214157X
Volume :
49
Issue :
103131-
Database :
Directory of Open Access Journals
Journal :
Case Studies in Thermal Engineering
Publication Type :
Academic Journal
Accession number :
edsdoj.f3b931c2ac24495a3b2ee6a177fe1b3
Document Type :
article
Full Text :
https://doi.org/10.1016/j.csite.2023.103131