Turbulence Induced Changes in Vortex Shedding from a Circular Cylinder.
Abstract
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 anples 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- AD0775885
Entities
People
- Jack Edward Cermak
- Kenneth M. Barnett
Organizations
- Colorado State University