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RESEARCH PAPERS: Forced Convection

Numerical Prediction of Transitional Characteristics of Flow and Heat Transfer in a Corrugated Duct

[+] Author and Article Information
L. C. Yang, Y. Asako, Y. Yamaguchi

Department of Mechanical Engineering, Tokyo Metropolitan University, Tokyo, 192-03 Japan

M. Faghri

Department of Mechanical Engineering and Applied Mechanics, University of Rhode Island, Kingston, RI 02881

J. Heat Transfer 119(1), 62-69 (Feb 01, 1997) (8 pages) doi:10.1115/1.2824101 History: Received December 04, 1995; Revised October 17, 1996; Online December 05, 2007

Abstract

The numerical prediction of transitional characteristics of fluid flow and heat transfer in periodic fully developed corrugated duct is carried out by using a Lam-Bremhorst low Reynolds number turbulence model. Computations were performed for Prandtl number of 0.7, in the Reynolds number range of 100 to 2500, for corrugation angles of θ = 15 and 30 deg, and for three interwall spacings. The predicted transitional Reynolds number is lower than the value for the parallel plate duct and it decreases with increasing corrugation angle. Experiments were also performed for pressure drop measurements and for flow visualization and the results were compared with the numerical predictions.

Copyright © 1997 by The American Society of Mechanical Engineers
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