Investigation of the Flow Characteristics of Titanium - Oxide - Water Nanofluid in Microchannel with Circular Cross Section

Etaig, Saleh and Hasan, Reaz and Perera, Noel (2017) Investigation of the Flow Characteristics of Titanium - Oxide - Water Nanofluid in Microchannel with Circular Cross Section. American Journal of Nano Research and Applications, 5 (6). pp. 102-109. ISSN 2575-3738

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Abstract

The presented paper reports the analysis of the flows characteristic of TiO2-water nanofluid flowing inside a horizontal microchannel with circular cross section area. The flow is investigated by CFD techniques using a finite volume method. A recently introduced viscosity correlation was used to model the effective viscosity of the nanofluid. A range of Re number is tested in the present study. Various temperature ranges were used as constant temperature boundary conditions. The increase of the nanoparticle volume fraction was found to increase the heat transfer rate; water showed less enhancement in heat transfer compared to the nanofluid. The increase in Re number promoted Nu number. The effect of the temperature on the effective viscosity in the channel was also reported. The change of the velocity in the entrance region was studied and discussed. The velocity gradient in the microchannel is calculated, and the results are shown and discussed.

Item Type: Article
Uncontrolled Keywords: Nanofluid, Convection, Viscosity and Microchannel
Subjects: F200 Materials Science
H100 General Engineering
H300 Mechanical Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Depositing User: Noel Perera
Date Deposited: 05 Dec 2018 10:25
Last Modified: 05 Dec 2018 10:26
URI: http://www.open-access.bcu.ac.uk/id/eprint/6648

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