航空学报 > 1999, Vol. 20 Issue (2): 155-157

窄缝风帘平行射流流动特性的研究

黄寅生, 夏春林, 陶蕾, 赵云   

  1. 南京航空航天大学动力工程系, 南京, 210016
  • 收稿日期:1998-05-20 修回日期:1998-09-21 出版日期:1999-04-25 发布日期:1999-04-25

EXPERIMENTAL INVESTIGATION OF FLUID FLOW CHARACTERISTICS IN CRACK PARALLEL SPOUT FILM

Huang Yinsheng, Xia Chunlin, Tao Lei, Zhao Yun   

  1. Dept.of Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016
  • Received:1998-05-20 Revised:1998-09-21 Online:1999-04-25 Published:1999-04-25

摘要:

以实验与数值方法,对窄缝平行射流的风帘作为密封视窗可行性进行研究,通过比较不同的两股流出口流场,探索视窗的风帘对主流速度的影响程度,为在油雾场全息测量等场合,由窄缝风帘取代光学玻璃作为视窗的依据。

关键词: 平行射流, 风帘, 视窗

Abstract:

The combustion chamber of the aeroengine is related to the degree and distribution of the oil spraying.Lots of tests for the spraying have been done.The clear and real flow area is very difficult to show through the window in the test.In this paper, the characteristics of the crack parallel spout flow were investigated experimentally and numerically.The results show that the flow film is possible to replace optic glasses for the tunnel window in a proper velocity ratio of the main fluid to the wind film.

Key words: parallel spout flow, w ind film, w indow s

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