| 单孔复合角射流的流场实验研究 |
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| 引用本文： | 徐红洲,王尚锦,刘松龄,陈辅群. 单孔复合角射流的流场实验研究[J]. 航空动力学报, 1998, 13(1): 69-71,110 |
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| 作者姓名： | 徐红洲 王尚锦 刘松龄 陈辅群 |
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| 作者单位： | 1.西安交通大学 |
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| 摘 要： | 在回流式传热风洞中，用五孔针对单气膜孔射流下游的流场进行了三维测量，观察到了复合角射流时产生的一对具有明显强度和大小差别的流向耦合双涡结构，并发现γ＝１５°的扇形孔较圆孔具有较弱的射流穿透能力和旋涡强度，其射流冷气可更利于贴近壁面。
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| 关 键 词： | 射流 流场 实验 |
| 收稿时间： | 1997-02-01 |
| 修稿时间： | 1997-05-01 |
INVESTIGATION OF SINGLE FILM COOLING HOLE WITH COMPOUND-ANGLE ORIENTATION |
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| Xu Hongzhou an,Wang Sanglin,Liu Songling and 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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| Authors: | Xu Hongzhou an Wang Sanglin Liu Songling and Cheng Fuqun |
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| Affiliation: | 1.College of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 7100492.7th Dept.Northwestern Polytechnical University,Xi'an 710072 |
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| Abstract: | The effects of blowing ratio at M=10 and 20 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. |
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| Keywords: | Jet Flow fields Experiment |
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