Natural Convection Heat Transfer in Two-Square Duct Annuli Filled with a Nanofluid

Abstract:

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 T_c, while the inner duct is kept at higher constant temperature T_h. The effect of the Rayleigh number, Ra and the nanoparticle volume fraction, φ on the heat transfer and Nusselt number, Nu are investigated and compared to previous study.

• Periodical: Applied Mechanics and Materials (Volumes 773-774)
• Pages: 299-303
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.773-774.299
• Online since: July 2015
• Authors: N.A. Bakar*, F. Aman, Mahathir Mohamad, Rozaini Roslan
• Keywords: Annulus, Finite Difference, Nanofluid, Natural Convection, Square Duct

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