The Effect of Drainage Configuration on Heat Transfer Under an Impinging Liquid Jet Array-Reference-Cited by-同舟云学术

The Effect of Drainage Configuration on Heat Transfer Under an Impinging Liquid Jet Array

Published:1999-11-01 Issue:4 Volume:121 Page:803-810
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Garrett K.¹,Webb B. W.¹

Affiliation:

1. Mechanical Engineering Department, 435 CTB, Brigham Young University, Provo, UT 84602

Abstract

The heat transfer characteristics of single and dual-exit drainage configurations for arrays of liquid jets impinging normal to a heated isoflux plate has been studied experimentally. The interaction of drainage channel crossflow from upstream jets and the stagnation jets and its impact on heat transfer was the focus of the investigation. Infrared thermography was used to measure the local temperature distribution on the heated plate, from which local heat transfer coefficients were determined. A single jet diameter was used, and jet arrays with jet-to-jet spacings of 4.8, 6, 8, and 12 jet diameters were studied. Average jet Reynolds numbers in the range 400–5000 were investigated for jet nozzle-to-impingement plate spacings of 1, 2, and 4 jet diameters for fully flooded (submerged) drainage flow. A single jet-to-plate spacing large enough to yield free-surface jets was also studied. The data reveal a complex dependence of local and average Nusselt numbers on the geometric parameters which describe the problem configuration.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/121/4/803/5912177/803_1.pdf

Reference21 articles.

1. Beckwith, T. G., Buck, N. L., and Marangoni, R. D., 1982, Mechanical Measurements, 3rd Ed., Addison-Wesley, Reading, MA.

2. Florschuetz L. W. , BerryR. A., and MetzgerD. E., 1980, “Periodic Streamwise Variations of Heat Transfer Coefficients for Inline and Staggered Arrays of Circular Jets With Crossflow of Spent Air,’ ASME JOURNAL OF HEAT TRANSFER, Vol. 102, pp. 132–137.

3. Florschuetz L. W. , TrumanC. R., and MetzgerD. E., 1981, “Streamwise Flow and Heat Transfer Distributions for Jet Array Impingement With Crossflow,” ASME JOURNAL OF HEAT TRANSFER, Vol. 103, pp. 337–342.

4. Gabour L. A. , and LienhardJ. H. V., 1993, “Wall Roughness Effects Stagnation-Point Heat Transfer Beneath an Impinging Jet,” ASME Heat Transfer Division HTD-Vol. 249, pp. 35–43.

5. Garrett, K., 1998, “The Effect of Drainage Configuration on Heat Transfer under Impinging Liquid Jet Array,” M.S. thesis, Brigham Young University, Provo, UT.

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