Comparison of heat transfer characteristics of radial jet reattachment nozzle to in-line impinging jet nozzle

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:428138

Seyed-Yagoobi, J; Narayanan, V; Page, R H; Wirtz, J W ^[1]

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1. Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

The heat transfer characteristics of three submerged radial jet reattachment (RJR) nozzles with exit angles of +45{degree}, 0{degree}, and {minus}10{degree} are compared to the heat transfer characteristics of a conventional submerged in-line jet (ILJ) nozzle. The comparisons are made under identical air flow power and at each nozzle`s favorable spacing from the impingement surface. The local and area averaged Nusselt numbers are presented. The results indicate that significant enhancements in local and area averaged Nusselt numbers can be achieved with the RJR nozzle over the conventional ILJ nozzle while being able to control the net exerted force on the impingement surface. Also a comparison is made between the ILJ and RJR nozzles on the basis of the same peak pressure exerted on the impingement surface. This comparison indicates that the RJR nozzle heat transfer characteristics are superior to the ILJ nozzle.

• OSTI ID: 428138
• Report Number(s): CONF-960815--; ISBN 0-7918-1506-4
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COMPARATIVE EVALUATIONS
CONFIGURATION
EXPERIMENTAL DATA
HEAT TRANSFER
JETS
NOZZLES