| 摘要: |
| 通过模型实验,研究利用发动机排气的引射作用,将外界部分冷空气引入发动机机舱,对后机身结构进行冷却的效果;研究被引射的冷气流在机尾罩后部与发动机排气混合后,向外排出时,对排气的红外辐射、噪声和推力的影响。 |
| 关键词: 涡轮喷气发动机 引射喷管 紊流混合 性能分析 |
| DOI： |
| 分类号: |
| 基金项目: |
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| THE EXPERIMENTAL INVESTIGATION OF COMBINATION EFFECT BY USING INJECTION EFFECT OF AROENGINE JET EXHAUST |
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Liu Dezhang, Liu Yong, Wang Suofang, Yang Jingsong
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Nanjing Aeronautical Institute
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| Abstract: |
| In this paper, the cooling back fuselage structure is investigated through model experiment with sucking outside cool air into the airplane cabin due to the ejection effect of aeroengine jet exhaust. The ejected air will mix with the jet exhaust aft the aircraft tail cup, and the resulted effect on the infrared radiation, noise and propulsive force of the exhaust is investigated. |
| Key words: Turbojet engine Shrouded nozzle Turbulent mixing Perfor- mance analysis |
