| 可调唇口改善大攻角下S弯进气道内部压力场的实验研究 |
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| 引用本文： | 翁培奋,郭荣伟.可调唇口改善大攻角下S弯进气道内部压力场的实验研究[J].航空动力学报,1996,11(4):406-408,440. |
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| 作者姓名： | 翁培奋 郭荣伟 |
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| 作者单位： | 上海大学(翁培奋)，南京航空航天大学(郭荣伟) |
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| 摘 要： | 实验研究了可调唇口对大攻角下Ｓ弯进气道内气流压力场的作用。在攻角从０°到８０°、唇口角从０°到５０°的实验条件下，分别测量了Ｓ弯进气道的４个壁面沿程静压以及管道出口截面静压。结果表明：如果没有可调唇口技术，随着攻角增大，Ｓ弯进气道内的压力会大大减小。可调唇口大大地提高了进气道压力，改善了进气道的预扩压性能
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| 关 键 词： | 发动机进气道 流场畸变场 流控技术 |
| 收稿时间： | 9/1/1995 12:00:00 AM |
| 修稿时间： | 3/1/1996 12:00:00 AM |
IMPROVEMENT OF PRESSURE FIELD IN S-SHAPED DIFFUSER AT HIGH INCIDENCE BY VARIABLE LIP |
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| Weng Peifen and Guo Rongwei.IMPROVEMENT OF PRESSURE FIELD IN S-SHAPED DIFFUSER AT HIGH INCIDENCE BY VARIABLE LIP[J].Journal of Aerospace Power,1996,11(4):406-408,440. |
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| Authors: | Weng Peifen and Guo Rongwei |
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| Institution: | Shanghai Inst.of Appl. Math.and Mech.,Shanghai University,Shanghai 200030;2nd Dept.Naijing University of Aeronautics and Astronautics,Nanjing 210016 |
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| Abstract: | The effects of a variable lip on pressure field in an S-shaped air intake at high angle of attack have been investigated experimentally.The measurements of wall and exit static pressures were made at the range of incidence from 0° to 80° of lip angle from 0° to 50°.With increasing angle of the variable lip,two effects exist:(1)the incidence seems to reduced,(2)a door with the same effect as auxiliary air intake door (AAID) occurs behind this lip because of its rotation,which allows air flow with a high kinetic energy into the diffuser.The results show that the pressure promotion is obtained in this kind of intake with the help of the variable lip technique. |
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| Keywords: | Engine inlets Flow distortions Fluidics |
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