在非垂直横向气流中直射式喷嘴雾化细度的实验研究

推进技术 ›› 1989, Vol. 10 ›› Issue (2): 21-25.

在非垂直横向气流中直射式喷嘴雾化细度的实验研究

王立新,张岩,刘真,金如山

北京航空航天大学;北京航空航天大学;北京航空航天大学;北京航空航天大学

发布日期:2021-08-15

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

Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics

Published:2021-08-15

摘要/Abstract

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.

关键词: 燃料喷嘴;燃油雾化;燃料喷射;实验;研究

Abstract: 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

Key words: Fuel nozzle;Fuel pulverization;Fuel spray;Jet engine;Combustion chamber;Fuel system;Experimentation;Research

王立新,张岩,刘真,金如山. 在非垂直横向气流中直射式喷嘴雾化细度的实验研究[J]. 推进技术, 1989, 10(2): 21-25.