Investigation of the Droplet Impact Upon An Inclined Curved Non-Piezoelectric Substrate Propagating Lamb Waves

Abstract

In this paper, using propagating Lamb waves along the inclined curved surfaces, we present a technique to reduce the impact of rainy days on-camera performance. Our experimental results show that Lamb waves, generated at a location distant from a point of droplet impact, can suppress the formation of satellite droplets during partial rebound. Additionally, a high-fidelity numerical simulation model was developed, revealing that the liquid’s surface tension significantly affects the occurrence of satellite droplets during partial rebound. Moreover, by applying Lamb waves, the droplet on the curved surface can be propelled at different speeds. Combining numerical simulations, we can clearly observe the deformation of the gas-liquid interface after the droplets impact the substrate. Afterward, we systematically investigated the effects of droplet impact height, inclination angle, and applied input power on the Lamb Waves on droplet removal.