The Effects of Nozzle Diameter on Impinging Jet Heat Transfer and Fluid Flow-Reference-Cited by-同舟云学术

The Effects of Nozzle Diameter on Impinging Jet Heat Transfer and Fluid Flow

Published:2003-12-16 Issue:4 Volume:126 Page:554-557
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Lee Dae Hee¹,Song Jeonghoon¹,Jo Myeong Chan²

Affiliation:

1. Technology Innovation Center for Automotive Parts, School of Mechanical and Automotive Engineering, Inje University, 607, Obang-dong, Kimhae, Kyongnam 621-749 Korea

2. School of Mechanical and Automotive Engineering, Inje University

Abstract

The effects of nozzle diameter on heat transfer and fluid flow are investigated for a round turbulent jet impinging on a flat plate surface. The flow at the nozzle exit has a fully developed velocity profile. A uniform heat flux boundary is created at the plate surface by using gold film Intrex, and liquid crystals are used to measure the plate surface temperature. The experiments are performed for the jet Reynolds number (Re) of 23,000, with a dimensionless distance between the nozzle and plate surface L/d ranging from 2 to 14 and a nozzle diameter (d) ranging from 1.36 to 3.40 cm. The results show that the local Nusselt numbers increase with the increasing nozzle diameter in the stagnation point region corresponding to 0⩽r/d⩽0.5. This may be attributed to an increase in the jet momentum and turbulence intensity level with the larger nozzle diameter, which results in the heat transfer augmentation. In the mean time, the effect of the nozzle diameter on the local Nusselt numbers is negligibly small at the wall jet region corresponding to r/d>0.5.

Publisher

ASME International

Subject

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

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/126/4/554/5790883/554_1.pdf

Reference20 articles.

1. Martin, H., 1977, “Heat and Mass Transfer Between Impinging Gas Jets and Solid Surfaces,” Advances in Heat Transfer, Academic Press, New York, pp. 1–60, Chpt. 13.

2. Down, S. J., and James, E. H., 1987, “Jet Impinging Heat Transfer—A Literature Survey,” ASME Paper No. 87-H-35.

3. Goldstein, R. J., Behbahani, A. I., and Heppelmann, K. K., 1986, “Streamwise Distribution of the Recovery Factor and the Local Heat Transfer Coefficient to an Impinging Circular Air Jet,” Int. J. Heat Mass Transfer, 29(8), pp. 1227–1235.

4. Viskanta, R. , 1993, “Heat Transfer to Impinging Isothermal Gas and Frame Jet,” Exp. Therm. Fluid Sci., 6, pp. 111–134.

5. Hoogendoorn, C. J. , 1977, “The Effect of Turbulence on Heat Transfer at Stagnation Point,” Int. J. Heat Mass Transfer, 20, pp. 1333–1338.

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