An experimental investigation of the two flows around finite circular cylinders with different head geometries mounted on a flat plate, see fig. 1, is reported. The aspect ratio L/D (with length L and diameter D) of both cylinder models is 2.0. The focus of this study is toward examining the complex separated flow structures and wake properties as well as the influence of the head geometry on the flow characteristics. Velocity and turbulence measurements have been carried out with a three component Laser Doppler anemometer (LDA) at the Reynolds number ReD = 2.0 · 105. The experimental results show complex 3D fluid motions in the regions of separated flow. They are induced by the superposition of three main vortical flows. The developing vortex and turbulence structures for both investigated models show similar overall features. Differences in the geometries of the 3D-envelopes of the recirculating flow as well as in the distributions of turbulent terms can be allocated to differences in the vortical flows over the free end surfaces of the cylinders.
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ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
3D-Flow Structures Behind Truncated Circular Cylinders Available to Purchase
Alfred Leder
Alfred Leder
University of Rostock, Rostock, Germany
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Alfred Leder
University of Rostock, Rostock, Germany
Paper No:
FEDSM2003-45083, pp. 825-831; 7 pages
Published Online:
February 4, 2009
Citation
Leder, A. "3D-Flow Structures Behind Truncated Circular Cylinders." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 825-831. ASME. https://doi.org/10.1115/FEDSM2003-45083
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