Local heat transfer to staggered arrays of impinging circular air jets

A. I. Behbahani, R. J. Goldstein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Measurements are made of the local heat transfer from a flat plate to impinging arrays of staggered circular air jets. Fluid from the spent jets is constrained to flow out in one direction. Two different jet-to-jet spacings, 4 and 8 jet diameters, are employed. The parameters that are varied include jet-orifice-plate to impingement-surface spacing and jet Reynolds number. Local heat transfer coefficients vary periodically both in the flow direction and across the span with high values occurring at stagnation regions. Stagnation regions of individual jets as determined by local heat transfer coefficients move further in the downstream direction as the amount of crossflow due to upstream jet air increases. Local heat transfer coefficients are averaged numerically to obtain spanwise and streamwise-spanwise averaged heat transfer coefficients.

Original languageEnglish (US)
Title of host publicationHeat Transfer; Electric Power
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791879597
DOIs
StatePublished - 1982
EventASME 1982 International Gas Turbine Conference and Exhibit, GT 1982 - London, United Kingdom
Duration: Apr 18 1982Apr 22 1982

Publication series

NameProceedings of the ASME Turbo Expo
Volume4

Other

OtherASME 1982 International Gas Turbine Conference and Exhibit, GT 1982
CountryUnited Kingdom
CityLondon
Period4/18/824/22/82

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