The effects of a small-scale, rectangular synthetic air jet on the local convective heat transfer from a flat, heated surface were measured experimentally. The synthetic jet impinges normal to the surface and induces small-scale motions by zero-net mass flux, time-periodic entrainment, and ejection of ambient air at frequencies whose periods are far higher than the characteristic thermal time scale. The velocity field between the jet orifice and the target plate is measured in planar cross sections using particle image velocimetry and is related to the local heat transfer from the plate. The present work suggests that synthetic jets can lead to substantial enhancement of the local heat transfer from heated surfaces by strong mixing that disrupts the surface thermal boundary layer. The dependence of the local heat transfer coefficient on the primary parameters of jet motion is characterized over a range of operating conditions.
Skip Nav Destination
e-mail: mark.gillespie@pgnmail.com
e-mail: william.black@me.gatech.edu
e-mail: gt1479b@mail.gatech.edu
e-mail: ari.glezer@me.gatech.edu
Article navigation
Research Papers
Local Convective Heat Transfer From a Constant Heat Flux Flat Plate Cooled by Synthetic Air Jets
M. B. Gillespie,
e-mail: mark.gillespie@pgnmail.com
M. B. Gillespie
Progress Energy
, 8202 West Venable Street, Crystal River, FL 34429
Search for other works by this author on:
W. Z. Black,
W. Z. Black
George W. Woodruff School of Mechanical Engineering,
e-mail: william.black@me.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332-0405
Search for other works by this author on:
C. Rinehart,
C. Rinehart
George W. Woodruff School of Mechanical Engineering,
e-mail: gt1479b@mail.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332-0405
Search for other works by this author on:
A. Glezer
A. Glezer
George W. Woodruff School of Mechanical Engineering,
e-mail: ari.glezer@me.gatech.edu
Georgia Institute of Technology
, Atlanta, GA 30332-0405
Search for other works by this author on:
M. B. Gillespie
Progress Energy
, 8202 West Venable Street, Crystal River, FL 34429e-mail: mark.gillespie@pgnmail.com
W. Z. Black
George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405e-mail: william.black@me.gatech.edu
C. Rinehart
George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405e-mail: gt1479b@mail.gatech.edu
A. Glezer
George W. Woodruff School of Mechanical Engineering,
Georgia Institute of Technology
, Atlanta, GA 30332-0405e-mail: ari.glezer@me.gatech.edu
J. Heat Transfer. Oct 2006, 128(10): 990-1000 (11 pages)
Published Online: February 22, 2006
Article history
Received:
March 29, 2005
Revised:
February 22, 2006
Citation
Gillespie, M. B., Black, W. Z., Rinehart, C., and Glezer, A. (February 22, 2006). "Local Convective Heat Transfer From a Constant Heat Flux Flat Plate Cooled by Synthetic Air Jets." ASME. J. Heat Transfer. October 2006; 128(10): 990–1000. https://doi.org/10.1115/1.2345423
Download citation file:
Get Email Alerts
Cited By
Related Articles
An Experimental Evaluation of Advanced Leading Edge Impingement Cooling Concepts
J. Turbomach (January,2001)
Heat Transfer on Internal Surfaces of a Duct Subjected to Impingement of a Jet Array with Varying Jet Hole-Size and Spacing
J. Turbomach (January,2006)
Free Jet Impingement Heat Transfer of a High Prandtl Number Fluid Under Conditions of Highly Varying Properties
J. Heat Transfer (August,1999)
Related Proceedings Papers
Related Chapters
Even a Watched Pot Boils Eventually
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong
Extended Surfaces
Thermal Management of Microelectronic Equipment, Second Edition
Extended Surfaces
Thermal Management of Microelectronic Equipment