INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION

Xu Hongzhou and; Wang Sanglin; Liu Songling and; Cheng Fuqun

Volume 13 Issue 1

Jan. 1998

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Article Navigation > Journal of Aerospace Power > 1998 > 13(1): 69-71,110

Xu Hongzhou and, Wang Sanglin, Liu Songling and, Cheng Fuqun. INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION[J]. Journal of Aerospace Power, 1998, 13(1): 69-71,110.

Citation:

Xu Hongzhou and, Wang Sanglin, Liu Songling and, Cheng Fuqun. INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION[J]. Journal of Aerospace Power, 1998, 13(1): 69-71,110.

Xu Hongzhou and, Wang Sanglin, Liu Songling and, Cheng Fuqun. INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION[J]. Journal of Aerospace Power, 1998, 13(1): 69-71,110.

Citation:

Xu Hongzhou and, Wang Sanglin, Liu Songling and, Cheng Fuqun. INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION[J]. Journal of Aerospace Power, 1998, 13(1): 69-71,110.

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INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION

1.
College of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049
2.
7th Dept.Northwestern Polytechnical University,Xi'an 710072

Received Date: 1997-02-01
Rev Recd Date: 1997-05-01
Publish Date: 1998-01-28

Abstract

Abstract

The effects of blowing ratio at M=10 and 20 on downstream flow field single film cooling hole with compound-angle orientations have been investigated experimentally.It is found that a pair of counterrotating vortices,one of which is strong and another is weak,were observed in the downstream region of jet exit.The hole with a fan-shaped angle of 0° or 15° was oriented so that its angles with respect to the test surface are 60° in a stream/normal plane projection,and 30° or 45° in a spanwise/normal plane projection.Contours of longitudinal velocity show asymmetric kidney shape.The fan-shaped hole effectively decreases the strength of longitudinal vortex and increases the spreading of jet so that the film cooling effectiveness would be much greater than that found in the downstream of a circular hole.
- Jet,
- Flow fields,
- Experiment