Dynamics of flow behind backward-facing step in a narrow channel
Institute of Thermomechanics AS CR, v.v.i., Prague, Czech Republic
The results and their analysis from experiments obtained by TR-PIV are presented on the model of backward-facing step in a narrow channel. The recirculation zone is studied in details. Mean structures are evaluated from fluctuating velocity fields. Then dynamics of the flow is characterized with help of POD (BOD) technique. Substantial differences in high energy dynamical structures behaviour within the back-flow region and further downstream behind the flow reattachment have been found.
© Owned by the authors, published by EDP Sciences, 2013
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