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Effect of incident flow unsteadiness on the wake of a bluff body

The paper describes the results of studying the influence of a freestream disturbance localized in time and space on the structure of the wake of a symmetric teardrop-shaped airfoil in the range of angles of attack from −20° to +20°. It is demonstrated that the existence of such a disturbance leads...

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Bibliographic Details
Published in:Thermophysics and aeromechanics 2023-03, Vol.30 (2), p.195-207
Main Authors: Zinoviev, V. N., Lebiga, V. A., Mironov, D. S., Pak, A. Yu
Format: Article
Language:English
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Summary:The paper describes the results of studying the influence of a freestream disturbance localized in time and space on the structure of the wake of a symmetric teardrop-shaped airfoil in the range of angles of attack from −20° to +20°. It is demonstrated that the existence of such a disturbance leads to the suppression of vortex formation at certain angles of attack. Ranges of angles of attack in which the wake structure remains unchanged are found.
ISSN:1531-8699
0869-8643
1531-8699
DOI:10.1134/S0869864323020014