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RESEARCH PAPERS

Forced Convection Heat Transfer on Heated Bottom Surface of a Cavity

[+] Author and Article Information
H. Yamamoto

Department of Mechanical Engineering, Asahikawa Technical College, Asahikawa 070, Japan

N. Seki, S. Fukusako

Department of Mechanical Engineering, Hokkaido University, Sapporo 060, Japan

J. Heat Transfer 101(3), 475-479 (Aug 01, 1979) (5 pages) doi:10.1115/1.3451012 History: Received December 06, 1978; Online August 11, 2010

Abstract

Experiments to measure the heat transfer characteristics for various cavities situated at a duct-wall were performed. Flow visualization, measurements of pressure and temperature distributions on the heated bottom surface of cavity were carried out. It was observed that the effects of main flow stream, reattachment of separated flow, and vortex flow in the cavity on heat transfer unexpectedly large. It was found that heat transfer did not always decrease monotonously with an increase of aspect (depth-width) ratio D/W, in the flow range of laminar to turbulent. Correlations between Num and Rew were made in laminar and turbulent heat transfer ranges.

Copyright © 1979 by ASME
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