原文传递
Ice Particle Impacts on a Moving Wedge
| 题名： | Ice Particle Impacts on a Moving Wedge |
| 作者： | Vargas, M.; Struk, P. M.; Kreeger, R. E.; Palacios, J.; Iyer, K. A.; Gold, R. E. |
| 关键词： | Wedges##Rotors##Rotation##Fragments##Aircraft icing##Angles (geometry)##Impact velocity##Ice formation##Experiment design##Environmental tests##Test stands##Data processing##Data reduction##Velocity distribution##Imaging techniques##Aerodynamic configurations## |
| 摘要： | This work presents the results of an experimental study of ice particle impacts on a moving wedge. The experiment was conducted in the Adverse Environment Rotor Test Stand (AERTS) facility located at Penn State University. The wedge was placed at the tip of a rotating blade. Ice particles shot from a pressure gun intercepted the moving wedge and impacted it at a location along its circular path. The upward velocity of the ice particles varied from 7 to 12 meters per second. Wedge velocities were varied from 0 to 120 meters per second. Wedge angles tested were 0 deg, 30 deg, 45 deg, and 60 deg. High speed imaging combined with backlighting captured the impact allowing observation of the effect of velocity and wedge angle on the impact and the post-impact fragment behavior. It was found that the pressure gun and the rotating wedge could be synchronized to consistently obtain ice particle impacts on the target wedge. It was observed that the number of fragments increase with the normal component of the impact velocity. Particle fragments ejected immediately after impact showed velocities higher than the impact velocity. The results followed the major qualitative features observed by other researchers for hailstone impacts, even though the reduced scale size of the particles used in the present experiment as compared to hailstones was 4:1. |
| 总页数： | 23 |
| 报告类型： | 科技报告 |
相关文献
- Ice Particle Impacts on a Moving Wedge.
- Fragment Size Distribution for Ice Particle Impacts on a Glass Plate.
- Particle Image Velocimetry and Analysis Methods using Cleanly Seeded Particles in Supersonic Flow.
- Ice Crystal Icing Research at NASA
- Sensitivity Studies of Particle Emissions and Transport Around a Moving Vehicle
- Summary of Ice Jams and Mitigation Techniques in Alaska.
检索历史
应用推荐
