Sloshing induced damping across Froude numbers in a harmonically vertically excited system

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

An investigation was performed to measure sloshing motion and damping during harmonic forced vertical motion of a rectangular tank containing fluid, with a particular focus on the amplitude dependent transition between lateral sloshing and turbulent, vertical slamming. Qualitative and quantitative explanations are provided for the damping saturation point and dissipation effects, together with metrics to distinguish the different sloshing regimes, and a ballistic-harmonic analytical model is presented capable of reproducing the physical trends. Image processing tools were used to analyse experimental high-speed video footage, illustrating potential routes to increased damping in vertically oscillating structures, and correlating well with measured fluid forces and flow regimes.
Original languageEnglish
Article number116302
Number of pages25
JournalJournal of Sound and Vibration
Volume510
Early online date23 Jun 2021
DOIs
Publication statusE-pub ahead of print - 23 Jun 2021

Bibliographical note

Funding Information:
The research leading to these results was undertaken as part of the SLOWD project which has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 815044.

Funding Information:
The research leading to these results was undertaken as part of the SLOWD project which has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 815044 .

Publisher Copyright:
© 2021

Keywords

  • Damping
  • Sloshing
  • Loads Alleviation
  • Parametric excitation

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