| Issue |
MATEC Web Conf.
Volume 328, 2020
XXII. International Scientific Conference – The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy 2020 (AEaNMiFMaE-2020)
|
|
|---|---|---|
| Article Number | 05004 | |
| Number of page(s) | 8 | |
| Section | Visualization of Flow | |
| DOI | https://doi.org/10.1051/matecconf/202032805004 | |
| Published online | 18 November 2020 | |
On the Recirculation Zone Behind a Cylinder of Finite Length with Subcritical Aspect Ratio
1 Institute of Thermomechanics, ASCR, v.v.i., Dolejškova 5, Praha 8, CR
2 UWB, Faculty of Mechanical Engineering, Department of Power System Engineering, Universitní 8, Plzeň, CR
* Corresponding author: prochap@it.cas.cz
The Particle Image Velocimetry is utilized to investigate flow behind a cylinder of finite length with subcritical value of Aspect Ratio (AR). The cylinder is submitted to uniform freestream with very low intensity of turbulence and thin laminar boundary layer. The flow field cannot be expected as 2D even for time-averaged quantities. The Strouhal number is evaluated in various planes of measurement. The wake is fully turbulent and is composed of many streamwise and spanwise-oriented structures. Such complex flow is very convenient to be subjected to dynamical decomposition analysis.
© The Authors, published by EDP Sciences, 2020
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