关键词: 航空发动机;燃油雾化;燃料喷嘴

Abstract: Based on the study on spray characteristics at the exit of a gutter-atomizer,the spray concentration distribution down stream from the gutter-atomizer is measured by means of laser holography .In this paper the variation of atomiza-tion performance in the spray is studied, and the effects of the width of gutter, the diameter of atomizer and the air speed on the atomization performance is also discussed.

Key words: Aircraft engine;Fuel spray;Fuel nozzle