Research on the static contact angle algorithm of raindrop

In the aerospace field, the raindrop spread is inhibited. After coming into contact with the wing wall, it rapidly contracts, and the surface energy is reconverted into kinetic energy, causing the raindrop to bounce off the surface. The main characteristic parameter of superhydrophobicity is the contact angle. Therefore, it is very necessary to study the wetting phenomenon of raindrops on solid surfaces through contact angle parameters. In this paper, a static contact angle model of the raindrop is established, and the accuracy of the algorithm is verified through the numerical model, providing a theoretical basis for the design and development of aircraft superhydrophobic surfaces.