Cavitation upon low-speed solid–liquid impact
Nathan B. Speirs (),
Kenneth R. Langley (),
Zhao Pan (),
Tadd T. Truscott () and
Sigurdur T. Thoroddsen ()
Additional contact information
Nathan B. Speirs: King Abdullah University of Science and Technology (KAUST)
Kenneth R. Langley: King Abdullah University of Science and Technology (KAUST)
Zhao Pan: University of Waterloo
Tadd T. Truscott: King Abdullah University of Science and Technology (KAUST)
Sigurdur T. Thoroddsen: King Abdullah University of Science and Technology (KAUST)
Nature Communications, 2021, vol. 12, issue 1, 1-7
Abstract:
Abstract When a solid object impacts on the surface of a liquid, extremely high pressure develops at the site of contact. Von Karman’s study of this classical physics problem showed that the pressure on the bottom surface of the impacting body approaches infinity for flat impacts. Yet, in contrast to the high pressures found from experience and in previous studies, we show that a flat-bottomed cylinder impacting a pool of liquid can decrease the local pressure sufficiently to cavitate the liquid. Cavitation occurs because the liquid is slightly compressible and impact creates large pressure waves that reflect from the free surface to form negative pressure regions. We find that an impact velocity as low as ~3 m/s suffices to cavitate the liquid and propose a new cavitation number to predict cavitation onset in low-speed solid-liquid impact-scenarios. These findings imply that localized cavitation could occur in impacts such as boat slamming, cliff jumping, and ocean landing of spacecraft.
Date: 2021
References: View complete reference list from CitEc
Citations:
Downloads: (external link)
https://www.nature.com/articles/s41467-021-27383-5 Abstract (text/html)
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27383-5
Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/
DOI: 10.1038/s41467-021-27383-5
Access Statistics for this article
Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie
More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().