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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

ACOUSTIC ENHANCEMENT OF HEAT TRANSFER IN PLANE CHANNELS

Get access (open in a dialog) DOI: 10.1615/IHTC7.2880
pages 441-445

Sinopsis

The paper describes results of an experimental investigation of the influence of two-dimensional acoustically excited pulsating duct flow on the rate of heat-transfer from the duct wall. The heated wall which is a 20×40 cm aluminium plate is embedded in the bottom of the channel.
There are two kinds of flows through the channel:

A. Reciprocating parallel flow.
B. Stationary and rolling 2-D vortex sheet.

The results show that the acoustically excited flow increases the overall heat-transfer coefficient. Two parameters affect the cooling: the frequency of the disturbances and the channel height. The results include plate temperature measurements as well as some hot-wire measurements.