自耦合射流对平行主射流的矢量偏转实验研究

推进技术 ›› 2005, Vol. 26 ›› Issue (3): 248-251.

自耦合射流对平行主射流的矢量偏转实验研究

李念,张堃元,徐惊雷

南京航空航天大学能源与动力学院江苏南京210016;南京航空航天大学能源与动力学院江苏南京210016;南京航空航天大学能源与动力学院江苏南京210016

发布日期:2021-08-15
基金资助:
国家自然科学基金研究项目(10072027)。

Experimental investigation for primary flow vectoring using parallel synthetic jets

Coll. of Energy and Power, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016,China;Coll. of Energy and Power, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016,China;Coll. of Energy and Power, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016,China

Published:2021-08-15

摘要/Abstract

摘要： 为研究自耦合射流与主射流空间布局对主流矢量偏转的影响,采用了二者平行布局的方式,利用压电陶瓷单缝自耦合射流作动器出口两侧的低压区的卷吸作用,使主射流发生了显著的矢量偏转。实验表明,主射流的偏转角与自耦合射流和主射流之间的间距d,高差s等参数有关。在实验条件下,自耦合射流使约5·4m/s流速的主射流产生了最大45°的矢量偏转。

关键词: 射流;自耦合射流+;作动器;射流矢量技术+;偏转

Abstract: The interaction between a conventional rectangle primary jet and a synthetic jet was investigated experimentally.The synthetic jet actuator was parallel to the primary jet and the formation of a low-pressure region between the jets results in deflection of the primary jet towards the actuator jet. A detailed study shows that the vectoring angles vary with the distance between the synthetic jet and the primary jet. The experiment indicates that the 45°vector turning of 5.4 m/s primary jet is achieved by specially designed actuator while the maximum velocity value of the synthetic jet 5.5m/s is also achieved.

Key words: Jet flow;Synthetic jet~+;Actuator;Jet vectoring technique~+;Deflection

李念,张堃元,徐惊雷. 自耦合射流对平行主射流的矢量偏转实验研究[J]. 推进技术, 2005, 26(3): 248-251.