摘要
飞机结冰会对其飞行造成巨大隐患。应用Fensap软件,使用CFD计算方法,采用Spalart-Allmaras湍流模型对德国宇航中心(DLR)某型飞机的三维模型进行气动及水滴撞击特性分析。通过控制变量的方法,确定环境参量对水滴撞击特性的影响。结果表明:飞机速度增大,局部水收集系数减小;水滴直径减小,局部水收集效率也减小。
Aircraft icing will jeopardize its flight. The flow and droplet-impingement property of a three-dimen- sional model of a plane in the Deutsches Zentrum ftir Luft-und Raumfahrt（DLR） is analyzed by using Fensap CFD method and Spalart-Allmaras turbulence model. The influence of different environment parameter to drop- let-impingement property by altering specified parameter is determined and the influence of environment on plane icing is also known. The result indicates that higher velocity results in smaller water efficiency and smaller droplet diameter also results in smaller water efficiency.
出处
《航空工程进展》
2014年第1期75-79,共5页
Advances in Aeronautical Science and Engineering
关键词
飞机结冰
三维模型
水滴撞击特性
结冰区域
aircraft icing
three-dimensional model
droplet-impingement property
icing area
