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.
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Dovgal, A.V., Zanin, B.Y. & Sorokin, A.M. Response of axisymmetric separated flow to its spatially localized perturbation. Thermophys. Aeromech. 23, 801–807 (2016). https://doi.org/10.1134/S0869864316060020
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DOI: https://doi.org/10.1134/S0869864316060020