Abstract
The effect of mini-flaps on the flow pattern in the near vortex wake behind a model swept half-wing is investigated. The distributions of the time-average flow velocity were measured in a subsonic wind tunnel, in a section normal to the freestream velocity vector located at a distance of 3.8 wing half-spans from its trailing edge. When mini-flaps are mounted on both upper and lower wing surfaces, two vortices (tip and auxiliary) of the same sign are observable in the above-mentioned flow section; they are separated by an extended region of vorticity of the opposite sign. The model angle-of-attack effect on the intensities of the tip and auxiliary vortices is estimated.
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Original Russian Text © S.V. Zhigulev, M.N. Kogan, A.P. Kuryachii, V.M. Litvinov, A.A. Uspenskii, 2008, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2008, Vol. 43, No. 5, pp. 52–59.
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Zhigulev, S.V., Kogan, M.N., Kuryachii, A.P. et al. Controlling the near vortex wake of a swept half-wing by means of mini-flaps. Fluid Dyn 43, 718–724 (2008). https://doi.org/10.1134/S0015462808050050
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DOI: https://doi.org/10.1134/S0015462808050050