The singing vortex

R. Arndt, P. Pennings, J Bosschers, T. van Terwisga

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)

Abstract

Marine propellers display several forms of cavitation. Of these, propeller-tip vortex cavitation is one of the important factors in propeller design. The dynamic behaviour of the tip vortex is responsible for hull vibration and noise. Thus, cavitation in the vortices trailing from tips of propeller blades has been studied extensively. Under certain circumstances cavitating vortices have been observed to have wave-like disturbances on the surfaces of vapour cores. Intense sound at discrete frequencies can result from a coupling between tip vortex disturbances and oscillating sheet cavitation on the surfaces of the propeller blades. This research article focuses on the dynamics of vortex cavitation and more in particular on the energy and frequency content of the radiated pressures.

Original languageEnglish
Article number20150025
Number of pages11
JournalInterface Focus
Volume5
Issue number5
DOIs
Publication statusPublished - 2015

Keywords

  • Cavitation
  • Sound
  • Vortex

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