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TECHNICAL BRIEFS

Improved Modeling of Turbulent Forced Convective Heat Transfer in Straight Ducts

[+] Author and Article Information
M. Rokni, B. Sunden

Division of Heat Transfer, Lund Institute of Technology, 221 00 Lund, Sweden

J. Heat Transfer 121(3), 712-719 (Aug 01, 1999) (8 pages) doi:10.1115/1.2826038 History: Received March 30, 1998; Revised March 22, 1999; Online December 05, 2007

Abstract

This investigation concerns numerical calculation of turbulent forced convective heat transfer and fluid flow in their fully developed state at low Reynolds number. The authors have developed a low Reynolds number version of the nonlinear k-ε model combined with the heat flux models of simple eddy diffusivity (SED), low Reynolds number version of generalized gradient diffusion hypothesis (GGDH), and wealth ∝ earning × time (WET) in general three-dimensional geometries. The numerical approach is based on the finite volume technique with a nonstaggered grid arrangement and the SIMPLEC algorithm. Results have been obtained with the nonlinear k-ε model, combined with the Lam-Bremhorst and the Abe-Kondoh-Nagano damping functions for low Reynolds numbers.

Copyright © 1999 by The American Society of Mechanical Engineers
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