高频高速流体振荡器工作特性

周銮良; 王士奇; 温新

doi:10.13224/j.cnki.jasp.20210099

高频高速流体振荡器工作特性

doi: 10.13224/j.cnki.jasp.20210099

1.
上海交通大学机械与动力工程学院，上海 200240
2.
中国航空发动机集团有限公司中国航空发动机研究院，北京 101304

基金项目: 航空动力基金（6141B0950399）；国家自然科学基金（12072196）；先进航空动力创新工作站（HKCX2019-01-016）

详细信息

作者简介:
周銮良（1997-），男，硕士生，主要从事叶轮机械气动热力学研究。

中图分类号: V211;O353.5;TP61
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- 文章访问数: 86
- HTML浏览量: 7
- PDF量: 106
- 被引次数: 0
出版历程
- 收稿日期: 2021-03-07
- 刊出日期: 2022-04-28

Working characteristics of a fluidic oscillator with high frequency and high speed

1.
School of Mechanical Engineering，Shanghai Jiao Tong University，Shanghai 200240，China
2.
Aero Engine Academy of China，Aero Engine Corporation of China，Beijing 101304，China

摘要

摘要: 设计了一种新型高频高速流体振荡器，并采用热线风速仪、高频动态压力传感器等测量手段，对其频率-压力响应特性、速度-压力响应特性及内部压力传播特性进行了实验研究。结果表明：设计的流体振荡器工作频率约为900 Hz，进出口压比为2时，其出口射流速度范围为75~239 m/s。建立了振荡周期/频率与内部尺寸的关系式，验证了振荡器内部的压力传播与反射机制，并用压力的作用机制解释了射流偏转的两个阶段，为今后设计不同流动条件下所需的流体振荡器提供了设计思路。
- 高频高速 /
- 脉冲射流 /
- 流动分离主动控制 /
- 流体振荡器 /
- 动态压力传播
Abstract: A fluidic oscillator with high-frequency and high-speed was designed，and its frequency and velocity response to inlet pressure，and internal pressure propagation pattern were measured by hot wire anemometers and high-frequency dynamic pressure sensors.The results showed that the working frequency of the fluid oscillator was about 900 Hz，and when the inlet pressure ratio was 2，the outlet velocity range was 75-239 m/s.The relationship between the oscillation frequency and the internal size was established，the pressure propagation and reflection mechanism inside the oscillator were verified.And the two stages of the jet switching were explained by the pressure propagation mechanisms，which can provide insights into the future fluidic oscillator design under different flow control conditions.
- high frequency and high speed /
- pulsing jet /
- active flow separation control /
- fluidic oscillator /
- transient pressure propagation

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参考文献(25)

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