飞机热气防冰系统研究

Study on bleed air anti-icing system of aircraft

介绍了飞机热气防冰系统的应用背景及基本结构,回顾了其发展历程及国内外研究现状.从防冰表面水滴撞击特性计算、蒙皮外部结冰/溢流水模型建立、热气防冰腔内部结构参数研究以及多物理场防冰表面内外耦合仿真这4个关键问题角度,分析了热气防冰系统的主要研究内容.分析表明:准确预测三维溢流冰形成过程、优化热气防冰腔内部结构参数、确定防冰安全边界和防冰裕度以及冰风洞防冰系统实验的参数缩比等关键研究点是热气防冰系统的发展趋势.

The basic structure and application background of the bleed air anti-icing system of aircraft was introduced,and its development history and present development situation at home and abroad were reviewed.The main research contents were analyzed from four key points,including the calculation of anti-icing surface droplet impingement property,the modeling of external icing/runback water of skin,the study of the internal structure parameters of bleed air anti-ice system,and multiphase coupling simulation of anti-icing system.Finally,the development trend of bleed air anti-icing system was shown via the analysis of the accurate prediction of three-dimensional accreting process of runback ice,optimization method of internal structure parameters of bleed air anti-icing system,the determination of the anti-icing system＇s safety boundary and margin,the parameters＇ scaled model icing-wind tunnel experiment of anti-icing system.