| Issue |
EPJ Web of Conferences
Volume 67, 2014
EFM13 – Experimental Fluid Mechanics 2013
|
|
|---|---|---|
| Article Number | 02120 | |
| Number of page(s) | 7 | |
| Section | Contributions | |
| DOI | https://doi.org/10.1051/epjconf/20146702120 | |
| Published online | 25 March 2014 | |
https://doi.org/10.1051/epjconf/20146702120
Dynamics of secondary flow behind backward-facing step in a narrow channel
Institute of Thermomechanics, ASCR, v.v.i., Dolejskova 5, Praha 8, Czech Republic
a Corresponding author: uruba@it.cas.cz
Published online: 25 March 2014
Dynamics of the flow-field behind a backward-facing step in a narrow channel is studied experimentally using time resolved PIV technique. Secondary flow represented by vortical structures is studied using Oscillation Pattern decomposition technique. The low-frequency quasi-periodical structures appearing in the region just behind the step close to the channel bottom are studied. Typical dynamics of vortex structures involving contra-rotating vortex pair train, vortices coalescence and splitting have been observed.
© Owned by the authors, published by EDP Sciences, 2014
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