Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7157
Title: Numerical Analysis of Convective Heat Transfer of Nanofluids for Laminar Flow in a Circular Tube
Authors: Kirez, Oğuz
Yazıcıoğlu, Almila
Kakaç, Sadık
Keywords: [No Keywords]
Issue Date: 2013
Publisher: Amer Soc Mechanical Engineers
Source: ASME International Mechanical Engineering Congress and Exposition -- NOV 09-15, 2012 -- Houston, TX
Abstract: In this study, a numerical analysis of heat transfer enhancement of Alumina/water nanofluid in a steady-state, single-phase, laminar flow in a circular duct is presented for the case of constant wall heat flux and constant wall temperature boundary conditions. The analysis is performed with a newly suggested model (Corcione) for effective thermal conductivity and viscosity, which show the effects of temperature and nanoparticle diameter. The results for Nusselt number and heat transfer enhancement are presented in graphical and tabular forms, for a given Peelet number, nanoparticle volumetric fraction, and particle diameter in the thermal entrance region. The results are compared with the experimental results available in the literature under the same conditions and a good agreement is found. The two boundary conditions are compared and slightly differing results are discussed. Finally, the effect of the axial conduction and viscous dissipation are investigated. The axial conduction effect is found to be negligible for practical cases while the viscous dissipation effect is found to be significantly important depending, on the boundary conditions and the pipe diameter.
URI: https://hdl.handle.net/20.500.11851/7157
ISBN: 978-0-7918-4523-3
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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