Full-Coverage Film Cooling With Short Normal Injection Holes-Reference-Cited by-同舟云学术

Full-Coverage Film Cooling With Short Normal Injection Holes

Published:2001-02-01 Issue:4 Volume:123 Page:798-805
ISSN:0889-504X
Container-title:Journal of Turbomachinery
language:en
Short-container-title:

Author:

Harrington Mark K.¹,McWaters Marcus A.¹,Bogard David G.¹,Lemmon Christopher A.²,Thole Karen A.³

Affiliation:

1. Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712

2. Mechanical Engineering Department, University of Wisconsin-Madison, Madison, WI 53706

3. Mechanical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

Abstract

An experimental and computational investigation was conducted on the film cooling adiabatic effectiveness of a flat plate with full coverage film cooling. The full coverage film cooling array was comprised of ten rows of coolant holes, arranged in a staggered pattern, with short L/D=1, normal coolant holes. A single row of cooland holes was also examined to determine the accuracy of a superposition prediction of the full coverage adiabatic effectiveness performance. Large density coolant jets and high mainstream turbulence conditions were utilized to simulate realistic engine conditions. High-resolution adiabatic effectiveness measurements were obtained using infrared imaging techniques and a large-scale flat plate model. Optimum adiabatic effectiveness was found to occur for a blowing ratio of M=0.65. At this blowing ratio separation of the coolant jet immediately downstream of the hole was observed. For M=0.65, the high mainstream turbulence decreased the spatially averaged effectiveness level by 12 percent. The high mainstream turbulence produced a larger effect for lower blowing ratios. The superposition model based on single row effectiveness results over-predicted the full coverage effectiveness levels.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/turbomachinery/article-pdf/123/4/798/5842494/798_1.pdf

Reference12 articles.

1. Cho, H. H., and Goldstein, R. J., 1995,“Heat (Mass) Transfer and Film Cooling Effectiveness With Injection Through Discrete Holes: Part II—On the Exposed Surface,” ASME J. Turbomach., 117, pp. 451–460.

2. Metzger, D. E., Takeuchi, D. I., and Kuenstler, P. A., 1973,“Effectiveness and Heat Transfer With Full-Coverage Film Cooling,” ASME J. Eng. Power, 95, pp. 180–184.

3. Mayle, R. E., and Camarata, F. J., 1975,“Multihole Cooling Film Effectiveness and Heat Transfer,” ASME J. Heat Transfer, 97, pp. 534–538.

4. Metzger, D. E., Kuenstler, P. A., and Takeuchi, D. I., 1976, “Heat Transfer With Film Cooling Within and Downstream of One to Four Rows of Normal Injection Holes,” ASME Paper No. 76-GT-83.

5. Sasaki, M., Takahara, K., Kumagai, T., and Hamano, M., 1979,“Film Cooling Effectiveness for Injection From Multirow Holes,” ASME J. Eng. Gas Turbines Power, 101, pp. 101–108.

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