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RESEARCH PAPERS: Forced Convection

Numerical Investigation of Flow Field and Heat Transfer in Cross-Corrugated Ducts

[+] Author and Article Information
H. Blomerius, C. Hölsken, N. K. Mitra

Institut für Thermo- und Fluiddynamik Ruhr-Universität, D-44780 Bochum, Germany

J. Heat Transfer 121(2), 314-321 (May 01, 1999) (8 pages) doi:10.1115/1.2825982 History: Received June 04, 1997; Revised August 27, 1998; Online December 05, 2007

Abstract

Flow field and heat transfer in sine-wave crossed-corrugated ducts have been investigated by numerical solution of the Navier-Stokes and energy equations in the laminar and transitional flow regime between Re = 170 and 2000. The ratio of the corrugation wave length λ* to amplitude a* has been varied between 7 and 10. The angle of the corrugation of the neighboring plates has been kept fixed at 45 deg. Results show that the critical Reynolds number for self-sustained flow oscillations is about 240. For Reynolds numbers larger than 1000, the Nusselt number and the friction factor are nearly independent of the dimensionless wavelength. Computational results compare well with available experimental results.

Copyright © 1999 by The American Society of Mechanical Engineers
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