Eric Deem
François Nicolas
Louis Cattafesta
Farrukh Alvi
Florida State University

Image by Eric Deem/FSU

Volumetric velocity data are acquired in the wake of a cylinder of diameter D=20 mm and aspect ratio AR[=L/D]=3 immersed in a boundary layer. The Reynolds number based on diameter is Re=38,000. The relative boundary layer height is δ/H=0.45.

This plot is mean 3D streamlines of the wake behind the cylinder measured by tomographic PIV. The wake of the cylinder was chosen for this experiment due to the rich 3D flow features that can be observed. For example, two distinct counter-rotating regions are apparent in this plot. The mean was computed from 500 samples.

The funding for this research is provided by the AFOSR Grant [FA2386-12-1-3015], under the Defense University Research Instrumentation Program (DURIP), monitored by Dr. Doug Smith. Further support is provided by the NSF-PIRE grant [OISE-0968313] and the Florida Center for Advanced Aero-Propulsion (FCAAP).

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This image may be freely reproduced with the accompanying credit: E. Deem/FSU

Contact Information

Eric Deem
Florida State University
2003 Levy Ave
Tallahassee, Florida 32310
edeem@fsu.edu