The characteristics of the impinging heat transfer of a three-by-three square array of submerged, elliptic impinging jets was studied. Low Reynolds number conditions, 300 to 1500, are considered for two different elliptic jet aspect ratios, with the impingement distance ranging from 1 to 6 jet hydraulic diameters. A transient thermochromic liquid crystal method was used to map the local heat transfer coefficient distribution. The results are reported for the unit cell under the center jet and detail the mean heat transfer as well as the characteristics of the spatial variation of the heat transfer coefficient. The average heat transfer is found to depend inversely on the elliptic jet aspect ratio at these low Reynolds numbers. Distributions of the heat transfer coefficient, h, are also used to obtain proper orthogonal decompositions of h which are used to identify major spatially distributed features. [S0022-1481(00)02102-2]
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Identification of Dominant Heat Transfer Modes Associated With the Impingement of an Elliptical Jet Array
S. C. Arjocu,
S. C. Arjocu
Medical University of South Carolina, Charleston, SC 29403
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J. A. Liburdy
J. A. Liburdy
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
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S. C. Arjocu
Medical University of South Carolina, Charleston, SC 29403
J. A. Liburdy
Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division, December 30, 1997; revision received, December 2, 1999. Associate Technical Editor: J.-C. Han.
J. Heat Transfer. May 2000, 122(2): 240-247 (8 pages)
Published Online: December 2, 1999
Article history
Received:
December 30, 1997
Revised:
December 2, 1999
Citation
Arjocu, S. C., and Liburdy, J. A. (December 2, 1999). "Identification of Dominant Heat Transfer Modes Associated With the Impingement of an Elliptical Jet Array ." ASME. J. Heat Transfer. May 2000; 122(2): 240–247. https://doi.org/10.1115/1.521463
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