在非垂直横向气流中直射式喷嘴雾化细度的实验研究  

EXPERIMENTAL STUDY ON ATOMIZATION FINENESS OF PLAIN ORIFICE INJECTOR WITH NON-PERPENDICULAR INJECTION INTO CROSS FLOW AIR STREAM

作　　者：王立新[1] 张岩[1] 刘真 金如山[1] 

机构地区：[1]北京航空航天大学

出　　处：《推进技术》1989年第2期21-25,共5页Journal of Propulsion Technology

摘　　要：在文献[1-4]中关于横向气流中直射式喷嘴雾化的实验研究的基础上,研究了非垂直横向气流中直射式喷嘴的雾化细度.结果表明部分逆喷可大大地加强雾化,特别是在较低气流速度下尤为明显,对于一定的喷射方向、气流速度及喷嘴压力降,SMD并不是总随着喷口直径的增加而增加,在一定的喷口直径下,有一最小值.As a further step on experimental study of atomization by plain orifice inje- ctor in flowing air stream following the previous studies [1-4], an experimental study on atomization fineness of plain orifice injector with non-perpendicular injection into uniform cross flowing air stream has been conducted. The results show clearly that partial centra-stream injection improves atomization rather significantly , particularly under relatively low air flow velocity .For a certain combination of injection direction, air velocity and injector pressure drop, SMD will not always increase with the increase of orifice diameter, but having a minimum value at certain orifice diameter

关 键 词：航空发动机 喷嘴 燃油雾化 燃烧喷射 

分 类 号：V231.23[航空宇航科学与技术—航空宇航推进理论与工程]