电激励因素影响合成射流的实验研究

推进技术 ›› 2005, Vol. 26 ›› Issue (5): 420-424.

电激励因素影响合成射流的实验研究

罗振兵,夏智勋,易仕和,王德全

国防科学技术大学航天与材料工程学院湖南长沙410073;国防科学技术大学航天与材料工程学院湖南长沙410073;国防科学技术大学航天与材料工程学院湖南长沙410073;国防科学技术大学航天与材料工程学院湖南长沙410073

发布日期:2021-08-15
基金资助:
国家自然科学基金重大研究计划资助项目(90205016);国家自然科学基金资助项目(50176055)

Experimental investigation of the effects of electrical forcing factors on synthetic jets

Inst.of Aerospace and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China;Inst.of Aerospace and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China;Inst.of Aerospace and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China;Inst.of Aerospace and Material Engineering,National Univ.of Defence Technology,Changsha 410073,China

Published:2021-08-15

摘要/Abstract

摘要： 设计了合成射流双膜激励器及实验测试系统。采用热线风速仪对激励器出口下游不同点的速度进行测量并分析合成射流的发展演化,对电激励因素即激励电压幅值、频率及信号波形对合成射流的影响进行试验和分析,对激励器在不同激励频率下启动工作时合成射流的响应及建立时间进行了考察。

关键词: 合成射流+;激励器;流量控制;电激励因素+

Abstract: The actuators with dual-membrane and the experimental system have been set up.The actuator is excited with sine,square,triangle and burst waveform,and the time-dependent velocity is measured with a hot-wire anemometer over a wide range of spatial locations,forcing voltages and frequencies.The evolution of synthetic jet and the effects of electrical forcing factors on synthetic jets are summarized.The synthetic jet responding time is measured when the actuator is excited at different forcing frequencies.

Key words: Synthetic jet~+;Actuator;Flow control;Electrical forcing factors~+

罗振兵,夏智勋,易仕和,王德全. 电激励因素影响合成射流的实验研究[J]. 推进技术, 2005, 26(5): 420-424.