Numerical Study of Transient Forced Convection Heat Transfer in Square Duct with Nanofluid
Author(s) -
Ahmed Hamza H. Ali,
Tahseen A. Al-Hattab
Publication year - 2014
Publication title -
international journal of innovative research in science engineering and technology
Language(s) - English
Resource type - Journals
eISSN - 2347-6710
pISSN - 2319-8753
DOI - 10.15680/ijirset.2014.0308086
Subject(s) - nanofluid , forced convection , mechanics , heat transfer , transient (computer programming) , square (algebra) , duct (anatomy) , convection , materials science , combined forced and natural convection , thermodynamics , natural convection , physics , mathematics , computer science , medicine , geometry , anatomy , operating system
2 ABSTRACT: In the present paper, the problem of transient laminar forced convection flow of nanofluids in horizontal square duct has been thoroughly investigated using a single phase approach. The water is adopted as base fluid ,while the(Al2O3) and(CuO) are a solid nanoparticles. Computations are validated with experimental data available in the literature, good agreements are obtained. The results showed that Convective heat transfer coefficient for nanofluids is greater than that of the base liquid. Heat transfer enhancement increases with the particle volume concentration increase, but it is accompanied by increasing wall shear stress values. The isotherms are presented for various void fractions and Reynolds numbers. Also, the relation between the Nusselt number, and friction factor with Time are introduced for various Reynolds numbers and volume fraction of nanoparticles.
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