Analysis of the influence of different droplet size distribution on wing impact characteristics and ice shape

When an aircraft is flying, due to the presence of a large amount of liquid water in the air, the liquid water will freeze on the surface of the wing and accumulate into ice, which is one of the most important factors leading to flight accidents, and the particle diameter of water droplets is an important reason to determine the impact characteristics of water droplets. Taking the NACA0012 airfoil as the research object, the N-S equation is used to obtain the flow field characteristics, and the influence of the multi-size distribution of droplets and the diameter of droplets on the impact characteristics and the ice pattern under the airfoil is numerically calculated by using the finite element software. The results show that the larger the diameter of the water droplet, the larger the impact area on the wing surface, and the larger the liquid water collection coefficient on the wing surface. Different droplet size distribution has a non-negligible effect on the ice pattern.