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结冰现象是飞机在飞行中普遍发生的现象,会对飞机的性能和操纵性造成不利的影响,比如说升力系数的下降,阻力的上升,俯仰性能的变化。研究飞机结冰过程以及结冰后气动性能的变化一系列冰风洞试验有着不可取代的必要性。由于冰风洞中能模拟的试验条件有限,就要用到结冰相似参数的转换来在冰风洞中得到与在真实飞行中相似的流场及相似的液滴轨迹等条件。本文主要结合现代民机冰风洞试验来梳理和研究实用的相似参数转换方法,得到一系列公式体系,使冰风洞的实验条件能够满足实际飞行参数包线。
The phenomenon of icing is a common phenomenon in the aircraft flight, will have an adverse impact on the performance and maneuverability of the aircraft, such as the lift coefficient, the rise of resistance, the change of pitch performance. Studying the process of icing and the change of aerodynamic performance after icing A series of ice-wind tunnel tests have an irreplaceable necessity. Due to the limited experimental conditions that can be simulated in ice wind tunnels, the similar parameters of ice icing are used to obtain similar flow fields and similar drop trajectories in ice wind tunnels as in real flight. In this paper, combing and practicing the similar parameters conversion method in modern civil ice-ice tunnel experiment, a series of formula systems are obtained, which can make ice-ice tunnel experimental conditions meet the actual flight parameters envelope.