Response of axisymmetric separated flow to its spatially localized perturbation
- Authors: Dovgal A.V.1, Zanin B.Y.1, Sorokin A.M.1
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Affiliations:
- Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
- Issue: Vol 23, No 6 (2016)
- Pages: 801-807
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/216735
- DOI: https://doi.org/10.1134/S0869864316060020
- ID: 216735
Cite item
Abstract
The flow past an axisymmetric body with laminar boundary-layer separation in a low-velocity air stream has been studied. The hot-wire technique was employed to identify the variation of velocity field induced by a local stationary perturbation of separation region at the stern of the experimental model. A large-scale influence upon the near-wall flow due to a cylinder roughness element provided on the model surface was observed. The obtained data substantiate the possibility of controlling the laminar boundary-layer separation on an axisymmetric body using a local external forcing.
About the authors
A. V. Dovgal
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Author for correspondence.
Email: dovgal@itam.nsc.ru
Russian Federation, Novosibirsk
B. Yu. Zanin
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: dovgal@itam.nsc.ru
Russian Federation, Novosibirsk
A. M. Sorokin
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: dovgal@itam.nsc.ru
Russian Federation, Novosibirsk