流体机械2017，Vol.45Issue(10)：12-17,57,7.DOI:10.3969/j.issn.1005-0329.2017.10.003
高频脉冲射流激励器设计与动态特性试验
Design and Dynamic Characteristics Experiment of High Frequency Pulse Jet Actuator
李佳威 1李明震 2赵超 1伍耐明1
作者信息
- 1. 北京航空航天大学,北京 100191
- 2. 中国科学院工程热物理研究所,北京 100190
- 折叠
摘要
Abstract
A cone-shaped pulse jet actuator of high performance was designed based on flow separation characteristics of S-shaped inlet for the implementation of inlet active flow control. The performance experiment of the pulse jet actuator was carried out,and the performance of the actuator under different control parameters such as total inlet pressure,jet frequency and jet nozzle position were obtained. Results showed that cone-shaped pulse jet actuator could produce high frequency pulse jet with obvious sinusoidal characteristics,moreover,changing the inlet pressure could effectively adjust the jet speed,and adjusting the motor speed could achieve the multiplication of pulse frequency. The highest pulse frequency reached 800Hz in the experiment,and the jet velocity and frequency control were accurate and stable as well.关键词
脉冲射流/主动流动控制/控制参数/动态测试Key words
pulse jet/active flow control/control parameters/dynamic experiment分类
机械制造引用本文复制引用
李佳威,李明震,赵超,伍耐明..高频脉冲射流激励器设计与动态特性试验[J].流体机械,2017,45(10):12-17,57,7.
