Ice particle impacts on a moving wedge

Mario Vargas, Peter M. Struk, Richard E. Kreeger, José Palacios, Kaushik A. Iyer, Robert E. Gold

Research output: Contribution to journalConference article

Abstract

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°, 30°, 45°, and 60°. 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.

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Ice particle impacts on a moving wedge'. Together they form a unique fingerprint.

  • Cite this

    Vargas, M., Struk, P. M., Kreeger, R. E., Palacios, J., Iyer, K. A., & Gold, R. E. (2013). Ice particle impacts on a moving wedge. Transactions of Japanese Society for Medical and Biological Engineering, 51(SUPPL.).