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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 52, 2007 - Issue 11
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Original Articles

Numerical Investigation of Nanofluid Laminar Convective Heat Transfer through a Circular Tube

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Pages 1043-1058 | Received 08 Oct 2006, Accepted 01 Mar 2007, Published online: 19 Sep 2007
 

Abstract

Laminar-flow convective heat transfer of nanofluid in a circular tube with constant wall temperature boundary condition is investigated numerically. A dispersion model is used to account for the presence of nanoparticles. Numerical predictions are in agreement with experimental results obtained in our laboratory for different particles in different sizes. Results clearly show that addition of nanoparticles to base liquid produces considerable enhancement of heat transfer. Heat transfer coefficients increase with nanoparticle concentration. Decreasing nanoparticles size at a specific concentration increases heat transfer coefficients.

Additional information

Notes on contributors

S. Zeinali Heris

The present address of S. Zeinali Heris is Chemical Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran.

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