Email this article Experimental study of the separated flow structure behind a backward-facing step and a passive disturbance
- Authors: Terekhov V.I.1, Smul’skii Y.I.1, Sharov K.A.1
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Affiliations:
- Kutateladze Institute of Thermophysics, Siberian Branch
- Issue: Vol 57, No 1 (2016)
- Pages: 180-187
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/159081
- DOI: https://doi.org/10.1134/S002189441601020X
- ID: 159081
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Abstract
The flow in a channel with a backward-facing step and a rib mounted upstream of the step and generating flow disturbances is studied experimentally by the method of particle image velocimetry. It is demonstrated that mounting of a single rib leads to deformation of the profiles of the mean streamwise velocities and turbulent fluctuations. The effect of the position and height of a single rib on the recirculation region behind the backward-facing step is analyzed. Reduction of the recirculation region size behind the step in the case of flow reattachment upstream of the step is validated.
About the authors
V. I. Terekhov
Kutateladze Institute of Thermophysics, Siberian Branch
Author for correspondence.
Email: terekhov@itp.nsc.ru
Russian Federation, Novosibirsk, 630090
Ya. I. Smul’skii
Kutateladze Institute of Thermophysics, Siberian Branch
Email: terekhov@itp.nsc.ru
Russian Federation, Novosibirsk, 630090
K. A. Sharov
Kutateladze Institute of Thermophysics, Siberian Branch
Email: terekhov@itp.nsc.ru
Russian Federation, Novosibirsk, 630090
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