发动机整流支板大尺寸过冷水滴撞击特性

目前航空发动机防冰系统通用设计方案是以过冷小水滴的撞击特性为依据,但最新的研究结果显示大尺寸过冷水滴(SLD)环境下的结冰会对飞行器带来更加恶劣的影响.基于此,对大尺寸过冷水滴环境下发动机进口支板的水滴撞击特性进行了研究.首先对水滴运动控制方程进行了修正,以模拟水滴的变形及破碎的影响；然后对水滴在壁面处飞溅、反弹现象进...

Supercooled Large Droplet Impact Behaviors on an Aero-engine Strut

Presently design of anti-icing systems for aircraft engines is generally made for small droplet icing conditions.However,recent research shows that icing accretion due to supercooled large droplet(SLD) may result in extremely severe aircraft or engine performance degradation.With reference to the impact behavior of SLD on an aero-engine strut surface,a numerical method is presented in this paper to model some important phenomena and effects for the SLD,including deforming,breakup,splashing,rebounding,etc.So...