TURBULENCE INDUCED CHANGES IN VORTEX SHEDDING FROM A CIRCULAR CYLINDER

Turbulence effects on vortex shedding from a circular cylinder were investigated in a wind tunnel. Turbulence intensity, near the center of a wind tunnel, was increased by plates of similar geometry with many small holes with blockage ratios from .50 to .97. The Re of all flows was kept near 40,000. Vortex shedding frequency was observed simultaneously by a pressure transducer and a hot wire anemometer. Flow visualization, spectra and transducer output voltages with different wake angles were utilized to estimate transition and separation. Six things were observed that have not been published, to the best of the author's knowledge. (Modified author abstract)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/TR26
• Corporate Authors:

  Colorado State University, Fort Collins

  Fluid Mechanics Program
  Fort Collins, CO  United States  80521
• Authors:
  • Barnett, K M
  • Cermak, J E
• Publication Date: 1974-1

Media Info

• Pagination: 136 p.

Subject/Index Terms

• TRT Terms: Flow visualization; Power spectra; Turbulence; Vortex shedding
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00057200
• Record Type: Publication
• Source Agency: National Technical Information Service
• ISBN: TR-26
• Report/Paper Numbers: CER73-74KMB-JEC27 Tech. Rpt.
• Contract Numbers: N00014-68A-0493-0001
• Files: TRIS
• Created Date: Aug 16 1974 12:00AM