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RESEARCH PAPERS

Laminar Heat Transfer in a Channel With Two Right-Angled Bends

[+] Author and Article Information
R. S. Amano

Mechanical Engineering Department, University of Wisconsin—Milwaukee, Milwaukee, Wis. 53201

J. Heat Transfer 106(3), 591-596 (Aug 01, 1984) (6 pages) doi:10.1115/1.3246720 History: Received June 22, 1983; Online October 20, 2009

Abstract

A numerical study is reported on the flow and heat transfer in the channel with two right-angled bends. The modified hybrid scheme was employed to solve the steady full Navier-Stokes equations with the energy equation. The computations were performed for different step heights created in a long channel. The local heat transfer rate along the channel wall predicted by employing the present numerical model showed good agreement with the experimental data. The behavior of the flow and the heat transfer were investigated for the range of Reynolds number between 200 and 2000 and for step height ratios H/W = 1, 2, and 3. Finally, the correlation of the average Nusselt number in such channels as a function of Reynolds number is postulated.

Copyright © 1984 by ASME
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