| 双侧进气突扩燃烧室冷态两相流场的LDV实验研究 |
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| 引用本文： | 廖昌明,沈熊,周力行.双侧进气突扩燃烧室冷态两相流场的LDV实验研究[J].航空动力学报,1993,8(2):117-120,201. |
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| 作者姓名： | 廖昌明 沈熊 周力行 |
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| 作者单位： | 清华大学，清华大学，清华大学 北京市353信箱多相开放室100080 |
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| 摘 要： | 本文用二维 L DV研究了两种双侧进气突扩燃烧室中三维冷态两相流场。结果表明 ,这两种燃烧室可在头部产生较强的气相及颗粒相逆流运动 ,且有一种结构还可使头部气相及颗粒有旋流运动。本研究还表明两相间有速度滑移 ,气相及颗粒相均有较高的湍流强度。这些特征都有利于点火 ,火焰稳定及强化燃烧。
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| 关 键 词： | 双侧进气突扩 燃烧室 三维冷态两相流 二维LDV 实验 |
| 收稿时间： | 5/1/1992 12:00:00 AM |
| 修稿时间： | 1992/11/1 0:00:00 |
EXPERIMENTAL STUDY ON TURBULENT TWO-PHASE FLOW IN A DUAL-INLET SIDE DUMP COMBUSTOR |
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| Liao Changming,Shen Xiong and Zhou Lixing.EXPERIMENTAL STUDY ON TURBULENT TWO-PHASE FLOW IN A DUAL-INLET SIDE DUMP COMBUSTOR[J].Journal of Aerospace Power,1993,8(2):117-120,201. |
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| Authors: | Liao Changming Shen Xiong and Zhou Lixing |
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| Institution: | Tsinghua University;Tsinghua University;Tsinghua University |
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| Abstract: | The measurements of turbulent gas particle two phase flows in two types of side dump combustors have been made.One of the combustors is of blade inlet type,the other is of central tube tangential inlet type.Experimental investigations have been carried out by using a TSI 2 dimensional LDV system.The time averaged and RMS fluctuation velocity of gas and particle phases in axial and tangential directions have been measured.It can be seen that strong recirculating flows of two phases exist in the head zone of both combustors,and swirling flows of two phases exist in the tangential inlet combustor;the time averaged velocity slip between two phases and the fluctuation velocity of two phases are sufficiently high.These flow characteristics can be favorable to ignition,flame stabilization and combustion intensification. |
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