The local surface temperature, heat flux, heat transfer coefficient, and Nusselt number were measured for an inline array of circular, normal jets of single-phase, liquid water impinging on a copper block with a common outlet for spent flow, and an experimental two-dimensional (2D) surface map was obtained by translating the jet array relative to the sensors. The effects of variation in jet height, jet pitch, confining wall angle, and average jet Reynolds number were investigated. A strong interaction between the effects of the geometric parameters was observed, and a 5 deg confining wall was seen to be an effective method of managing the spent flow for jet impingement cooling of power electronics. The maximum average heat transfer coefficient of 13,100 W/m2 K and average Nusselt number of 67.7 were measured at an average jet Reynolds number of 14,000.
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September 2015
Research-Article
Liquid Jet Impingement With an Angled Confining Wall for Spent Flow Management for Power Electronics Cooling With Local Thermal Measurements
John F. Maddox,
John F. Maddox
1
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
Department of Mechanical Engineering,
e-mail: john.maddox@uky.edu
University of Kentucky
,Paducah, KY 42002
e-mail: john.maddox@uky.edu
1Corresponding author.
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Roy W. Knight,
Roy W. Knight
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
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Sushil H. Bhavnani
Sushil H. Bhavnani
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
Search for other works by this author on:
John F. Maddox
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
Department of Mechanical Engineering,
e-mail: john.maddox@uky.edu
University of Kentucky
,Paducah, KY 42002
e-mail: john.maddox@uky.edu
Roy W. Knight
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
Sushil H. Bhavnani
Department of Mechanical Engineering,
Auburn University
,Auburn, AL 36849
1Corresponding author.
Contributed by the Electronic and Photonic Packaging Division of ASME for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received April 27, 2015; final manuscript received June 25, 2015; published online July 14, 2015. Assoc. Editor: Xiaobing Luo.
J. Electron. Packag. Sep 2015, 137(3): 031015 (9 pages)
Published Online: September 1, 2015
Article history
Received:
April 27, 2015
Revision Received:
June 25, 2015
Online:
July 14, 2015
Citation
Maddox, J. F., Knight, R. W., and Bhavnani, S. H. (September 1, 2015). "Liquid Jet Impingement With an Angled Confining Wall for Spent Flow Management for Power Electronics Cooling With Local Thermal Measurements." ASME. J. Electron. Packag. September 2015; 137(3): 031015. https://doi.org/10.1115/1.4030953
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