Vortex forces on an oscillating cylinder

J. Carberry, J. Sheridan, D. Rockwell

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


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 publication2002 ASME International Mechanical Engineering Congress and Exposition
Number of pages8
Publication statusPublished - 1 Dec 2002
Event2002 ASME International Mechanical Engineering Congress and Exposition - New Orleans, United States of America
Duration: 17 Nov 200222 Nov 2002

Publication series

NameAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
ISSN (Print)0160-8835


Conference2002 ASME International Mechanical Engineering Congress and Exposition
Country/TerritoryUnited States of America
CityNew Orleans


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

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