飞机地面除冰效能与除冰参数相关性分析

Relevance Analysis of Deicing Parameters and Deicing Efficiency of Aircraft Ground

飞机地面积冰导致飞行安全隐患和航班延误,除冰液除冰是缓解上述问题的主要方法,但缺乏除冰液使用参数和除冰效能的参考依据。以研究除冰液参数对除冰效能的影响为目的,分析了除冰液除冰机理,抽象出该过程的黑箱数学模型,建立了除冰过程的分段模型,通过数值模拟方法研究了除冰液温度和流量对除冰效能相关性。实验表明:除冰效能和除冰液温度正相关,但流量增加不能迅速提高除冰速度,反而造成除冰液浪费。验证了仿真结论的合理性,为除冰装备技术指标和性能优化奠定基础。

Aircraft ground freezing could lead to potential danger and delay for flight. To alleviate these problems, the main method is to use the deicing fluids to clean ice or snow on the aircraft body, which lacks of reference of the deicing fluids parameters and efficiency. To study the effect of the deicing fluids parameters on the aircraft deicing efficiency, the deicing mechanism is analyzed.The black box mathematical model of the deicing process is generalized abstractly. The deicing process is divided into two subprocesses to establish the deicing model. The relevance between the deicing fluids parameters and deicing efficiency is studied through numerical simulation method. Experiments show that the deicing efficiency is positively related to the deicing fluids temperature. But the deicing velocity could not be enhanced with a big fluids flux in a moment, yet more deicing fluids are wasted massively. Experimental results verify that the deicing mechanism is reasonable, which provides a basis for deicing equipment qualification and performance optimization.