Vortex forces on an oscillating cylinder

J. Carberry, J. Sheridan, D. Rockwell

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)


The characteristic wake states of a cylinder undergoing forced sinusoidal oscillations transverse to the free-stream are studied by simultaneously measuring the structure of the near wake and the forces on the cylinder. The wake exhibits two distinctly different wake states. The transition between these states corresponds to a large discontinuous change in the phase of both the total and vortex forces on the cylinder, as well as the mode and phase of vortex shedding. Over the range of flow and oscillation parameters studied the vortex lift and drag phases collapse towards values that depend primarily on wake state. This is in contrast with the phase of the total lift force, which varied significantly with both A/D and Re.

Original languageEnglish
Title of host publication5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages7
ISBN (Print)0791836592, 9780791836590
Publication statusPublished - 1 Jan 2002

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings


  • Cylinder
  • Drag phase
  • Experimental
  • Forced oscillations
  • Vortex forces

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