Erosive aggressiveness of collapsing cavitating structures

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Abstract

The erosive aggressiveness of idealized cavities collapsing on a flat surface is investigated by numerical simulation, employing the cavitation intensity approach by Leclercq et al (2017) as a measure of the local energy impact rate. We propose a more straight forward formulation of the cavitation intensity model and verify that it satisfies energy conservation requirements for the accumulated surface energy. Based on the cavitation intensity model, statistical aggressiveness indicators are proposed. The indicators account for the rapidness and frequency of the collapse events. The aggressiveness indicators are further applied to a NACA0015 hydrofoil surface.
Original languageEnglish
Title of host publicationProceedings of the the 10th International Symposium on Cavitation (CAV2018)
EditorsJoseph Katz
Place of PublicationNew York, NY, USA
PublisherASME
Chapter69
Pages357-362
ISBN (Print)978-0-7918-6185-1
DOIs
Publication statusPublished - 2018
EventCAV2018: 10th International Symposium on Cavitation - Baltimore, United States
Duration: 14 May 201816 May 2018

Conference

ConferenceCAV2018: 10th International Symposium on Cavitation
CountryUnited States
CityBaltimore
Period14/05/1816/05/18

Keywords

  • cavitation erosion
  • impact energy
  • aggressiveness indicator
  • pressure recovery

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  • Cite this

    Schenke, S., & van Terwisga, T. (2018). Erosive aggressiveness of collapsing cavitating structures. In J. Katz (Ed.), Proceedings of the the 10th International Symposium on Cavitation (CAV2018) (pp. 357-362). [05073] ASME. https://doi.org/10.1115/1.861851_ch69