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Natural convection heat transfer in two-square duct annuli filled with a nanofluid

Bakar, N. A. and Aman, Fazlina and Mohamad, Mahathir and Roslan, Rozaini (2014) Natural convection heat transfer in two-square duct annuli filled with a nanofluid. In: International Integrated Engineering Summit (IIES 2014), 1-4 December 2014, Universiti Tun Hussein Onn Malaysia, Johor.


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The problem of natural convection fluid flow and heat transfer of TiO2-water nanofluid inside of two differentially-heated square ducts is analysed numerically by finite difference method. The outer duct is maintained at a constant temperature Tc, while the inner duct is kept at higher constant temperature Th. The effect of the Rayleigh number, Ra and the nanoparticle volume fraction, u on the heat transfer and Nusselt number, Nu are investigated and compared to previous study

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: annulus; finite difference; natural convection; nanofluid; square duct
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ255-265 Heat engines
Divisions: Faculty of Applied Science and Technology > Department of Science and Mathematics
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 10 May 2015 06:50
Last Modified: 10 May 2015 06:50
URI: http://eprints.uthm.edu.my/id/eprint/6310
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