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 language||English (US)|
|Title of host publication||Heat Transfer; Electric Power|
|Publisher||American Society of Mechanical Engineers (ASME)|
|State||Published - 1982|
|Event||ASME 1982 International Gas Turbine Conference and Exhibit, GT 1982 - London, United Kingdom|
Duration: Apr 18 1982 → Apr 22 1982
|Name||Proceedings of the ASME Turbo Expo|
|Other||ASME 1982 International Gas Turbine Conference and Exhibit, GT 1982|
|Period||4/18/82 → 4/22/82|
Bibliographical notePublisher Copyright:
Copyright © 1982 by ASME.