| 不同飞行条件下反流控制矢量喷管的内流特性 |
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| 引用本文： | 邹欣华,王强.不同飞行条件下反流控制矢量喷管的内流特性[J].北京航空航天大学学报,2011,37(2):227-230,236. |
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| 作者姓名： | 邹欣华 王强 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100191;北京航空航天大学,能源与动力工程学院,北京,100191 |
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| 摘 要： | 利用数值模拟方法,分析了不同飞行条件下反流控制矢量喷管的内流特性.结果表明:在所研究的范围内,静态条件下,不发生主流附着的情况下,所研究的2种缝宽喷管模型产生反向二次流的抽吸压强范围分别为60 795~87 139.5 Pa,50 662.5~91 192.5 Pa;且矢量角随着抽吸压强的增大而减小,推力系数则随之增大.在外流马赫数为0.6和1.2时,对于较小缝宽的喷管模型,均有不同程度的主流附着现象发生,无法应用于实际的矢量流场控制.对于较大缝宽喷管模型,在马赫数为0.6时,不发生主流附着的情况下,产生反流的抽吸压强为40 530~87 139.5 Pa.而马赫数为1.2时在所研究的二次压强下都无反流产生.
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| 关 键 词： | 反流推力矢量 主流附着 内流特性 |
| 收稿时间： | 2009-12-17 |
Internal performance of counterflow thrust vectoring nozzle under different flight conditions |
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| Zou Xinhua,Wang Qiang.Internal performance of counterflow thrust vectoring nozzle under different flight conditions[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(2):227-230,236. |
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| Authors: | Zou Xinhua Wang Qiang |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | An analysis of the impact of internal performance on the counterflow thrust vectoring nozzle under different flight conditions was presented by numerical simulation.The results show in static conditions counterflow phenomena occurs on two nozzles of different slot hights when the secondary pressure is at 60 795-87 139.5 Pa and 50 662.5-91 192.5 Pa without jet attachment.And with the secondary pressure increasing,the pitch-thrust-vector angles decrease and thrust ratios increase.When the Ma number is 0.6 and... |
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| Keywords: | counterflow thrust vectoring jet attachment internal performance |
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