自耦合射流对平行主射流的矢量偏转实验研究  

Experimental investigation for primary flow vectoring using parallel synthetic jets

作　　者：李念[1] 张堃元[1] 徐惊雷[1] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《推进技术》2005年第3期248-251,共4页Journal of Propulsion Technology

基　　金：国家自然科学基金研究项目(10072027)。

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。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 5.5 m/s is also achieved.

关 键 词：射流 自耦合射流^+ 作动器 射流矢量技术^+ 偏转 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]