Investigations of Heat-Transfer Coefficients for Air Flow Through Round Jets Impinging Normal to a Heat-Transfer Surface

[+] Author and Article Information
G. C. Huang

Mechanical Engineering Research Department, United States Rubber Company, Research Center, Wayne, N. J.

J. Heat Transfer 85(3), 237-243 (Aug 01, 1963) (7 pages) doi:10.1115/1.3686082 History: Received April 30, 1962


In this paper, empirical equations of local as well as average heat-transfer coefficients of single jet system were derived. Two aspects of multiple jet systems have been studied. One concerns mainly the uniform distribution of heat-transfer coefficients and economy of power consumption. The other concerns the high magnitude of heat-transfer coefficients and the interference among jets. The experiments were conducted at Reynolds number from 103 to 104 and hole size from 1/8 to 1/4 in. diameter. An attempt was made to correlate empirical data to render practical application possible.

Copyright © 1963 by ASME
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