航空航天术语 暮光效应  

作　　者：周小鱼 

机构地区：[1]不详

出　　处：《问天少年》2024年第2期84-85,共2页Aerospace Knowledge Youth

摘　　要：什么是暮光效应?暮光效应,指导弹或火箭推进剂的废气颗粒物,在运载火箭的尾迹(蒸汽)中凝结、冻住,并向密度较小的上层大气膨胀扩散时的现象:废气羽流悬浮在黑色夜空中,因散射被高空阳光照亮。此时在地面,可以看到壮观多彩的景象。What is a twilight phenomenon?A twilight phenomenon happens when exhaust particles from missile or rocket propellant left in the vapor trail of a launch vehicle condense,freeze,and then expand in the less dense upper atmosphere.The exhaust plume,which is suspended against a dark sky,is then illuminated by high-altitude sunlight through dispersion,which produces a spectacular,colorful effect when seen at ground level.

关 键 词：光效应 火箭推进剂 航空航天 颗粒物 运载火箭 废气 

分 类 号：G63[文化科学—教育学]