航天推进技术研究院主办
[1]李 欣,肖立明,刘 畅,等.三叶片两级诱导轮的气蚀性能研究[J].火箭推进,2018,44(06):86-90.
LI Xin,XIAO Liming,LIU Chang,et al.Study on cavitation performance of a two-stage inducer with three-blades[J].Journal of Rocket Propulsion,2018,44(06):86-90.
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LI Xin,XIAO Liming,LIU Chang,et al.Study on cavitation performance of a two-stage inducer with three-blades[J].Journal of Rocket Propulsion,2018,44(06):86-90.
三叶片两级诱导轮的气蚀性能研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
44
期数:
2018年06期
页码:
86-90
栏目:
测控与试验
出版日期:
2018-12-31
- Title:
- Study on cavitation performance of a two-stage inducer with three-blades
- 文章编号:
- 1672-9374(2018)06-0086-05
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- 为了研究三叶片两级诱导轮的气蚀性能,通过试验获取了诱导轮的水力性能和气蚀性能曲线,观察了两级诱导轮的气蚀发展变化情况,分析了其内部的压力脉动现象,并与单级诱导轮进行了对比。结果表明:两级诱导轮能减小初生气蚀数,降低同步旋转气蚀的强度,但在1.1 Qd和设计流量Qd工况下,两级诱导轮发生了频率为21 Hz的径向不稳定现象。
- Abstract:
- In order to study the cavitation performance of a two-stage inducer with three-blades, the hydraulic and cavitation performance in two-stage inducer were obtained through experiments.In addition, the cavitation development was observed with visualization tests, and the pressure fluctuation inside the inducer passage was investigated by Fast Fourier Transformation and compared with single-stage inducer.The results show that the two-stage inducer can improve the cavitation performance by reducing the incipient cavitation number and decreasing the intensity of synchronous rotating cavitation.However, under the conditions of design flow Qd and 1.1 Qd, a radial instability with a frequency of 21 Hz occurred in the two-stage inducer.
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[18] 李欣,肖立明,刘畅,等.变螺距诱导轮的气蚀性能研究[J].火箭推进,2017,43(2):1-8,17.
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备注/Memo
收稿日期:2017-11-07; 修回日期:2018-07-28 作者简介: 李 欣(1987—),男,博士,工程师,研究领域为空间运输系统,火箭发动机
更新日期/Last Update:
2018-12-25