Control of vortex breakdown in a closed cylinder with a small rotating rod

D. Lo Jacono, Jens Nørkær Sørensen, M.C. Thompson, K. Hourigan

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Effective control of vortex breakdown in a cylinder with a rotating lid was achieved with small rotating rods positioned on the stationary lid. After validation with accurate measurements using a novel stereoscopic particle image velocimetry (SPIV) technique, analysis of numerical simulations using a high-order spectral element method has been undertaken. The effect of a finite length rod creates additional source terms of vorticity as the rod rotates. These additional source terms and their spatial locations influence the occurrence of the vortex breakdown.
Original languageEnglish
JournalJournal of Fluids and Structures
Volume24
Issue number8
Pages (from-to)1278-1283
ISSN0889-9746
DOIs
Publication statusPublished - 2008

Keywords

  • SPIV
  • Control
  • Vortex breakdown

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