Library Subscription: Guest
Home Archives Officers Future meetings Assembly for International Heat Transfer Conferences
International Heat Transfer Conference 9

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

EXPERIMENTAL INVESTIGATION OF THE INFLUENCE OF UPSTREAM BOUNDARY LAYER ON NATURAL CONVECTION HEAT TRANSFER OF A HEATED UPWARD FACING SURFACE

Shi-Ming Yang
Institllte of Engineering Thermophysics and Energy, Shanghai Jiaotong University, Shanghai, China

Fei Chen
Shanghai Jiaotong University Shanghai 200030, China

Abstract

The heat transfer from heated upward facing horizontal surfaces with various degree of influences of upstream boundary layers are investigated experimentally. It reveals that the edge effect on heat transfer for eases with upstream boundary layers are in most cases contrary to that of the simple heated upward facing surfaces. New heat transfer correlations are recommended both for local and for average Nusselt numbers in the range of GrxPr=6×103 − 5×106. Comparison of the experimental data with the numerical results in literature indicates that the hypothesis of using flow path length as characteristic dimension is valid only for special cases where height z is dominant in the flow path but fails to predict the heat transfer in more general cases.

Download article Publication Ethics and Malpractice Recommend to my Librarian Bookmark this Page