NDLI: Multiple jet impingement heat transfer characteristic: experimental investigation of in-line and staggered arrays with crossflow

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Multiple jet impingement heat transfer characteristic: experimental investigation of in-line and staggered arrays with crossflow

Content Provider	NASA Technical Reports Server (NTRS)
Author	Florschuetz, L. W. Metzger, D. E. Takeuchi, D. I. Berry, R. A.
Copyright Year	1980
Description	Heat transfer characteristics were obtained for configurations designed to model the impingement cooled midchord region of air cooled gas turbine airfoils. The configurations tested were inline and staggered two-dimensional arrays of circular jets with ten spanwise rows of holes. The cooling air was constrained to exit in the chordwise direction along the channel formed by the jet orifice plate and the heat transfer surface. Tests were run for chordwise jet hole spacings of five, ten, and fifteen hole diameters; spanwise spacings of four, six, and eight diameters; and channel heights of one, two, three, and six diameters. Mean jet Reynolds numbers ranged from 5000 to 50,000. The thermal boundary condition at the heat transfer test surface was isothermal. Tests were run for sets of geometrically similar configurations of different sizes. Mean and chordwise resolved Nusselt numbers were determined utilizing a specially constructed test surface which was segmented in the chordwise direction.
File Size	6275646
Page Count	85
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800007101
Archival Resource Key	ark:/13960/t9t19tb0w
Language	English
Publisher Date	1980-01-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Gas Jets Air Flow Annealing Gas Turbines Thermal Control Coatings Jet Impingement Thermocouples Heat Transfer Cross Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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