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从研究二维翼型结冰问题入手,基于水滴流场的概念,采用基于气液两相流的欧拉方法求解水滴流场,得到水滴收集特性,再结合热力学模型数值模拟旋翼翼型结冰过程。通过计算结果和冰风洞试验数据的比较,验证了该方法正确有效。同时研究了气象参数对结冰的影响。基于本文建立的方法,计算分析了飞行速度、平均水滴直径、水滴浓度、温度等不同参数对水滴收集效率、冰型、结冰量、结冰范围的影响,深入地探讨了翼型结冰机理和结冰形成条件,得出气象参数影响特征。
Starting from the research of two-dimensional airfoil icing, based on the concept of water droplet flow, Euler method based on gas-liquid two-phase flow was used to solve the water droplet flow field and get the characteristics of water droplet collection. Combined with the thermodynamic model numerical simulation of rotor airfoil icing process. The comparison between the calculated results and the experimental data shows that the method is correct and effective. At the same time, the influence of meteorological parameters on icing was studied. Based on the method established in this paper, the effects of different parameters such as flight velocity, average droplet diameter, droplet concentration and temperature on the collection efficiency, ice type, ice volume and icing range of the water droplet are calculated and analyzed. The airfoil icing mechanism And icing conditions, we can get the characteristics of meteorological parameters.