Abstract
The receptivity of the boundary layer in the neighborhood of the attachment line of a cylinder inclined to the flow with respect to periodic vortex perturbations frozen into the stream is investigated. The problem considered simulates the interaction between external turbulence and the leading-edge swept wing boundary layer. It is shown that if the direction of the external perturbation vector is almost parallel to the leading edge, then the external perturbations are considerably strengthened at the outer boundary layer edge. This effect can cause laminar-turbulent transition on the attachment line at subcritical Reynolds numbers.
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Translated from Izvestiya Rossiiskoi Academii Nauk, Mekhanika Zhidkosti i Gaza, No. 6, 2004, pp. 72–85.Original Russian Text Copyright © 2004 by Ustinov.
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Ustinov, M. Receptivity of the inclined-cylinder attachment-line boundary layer to vortex perturbations. Fluid Dyn 39, 908–919 (2004). https://doi.org/10.1007/s10697-004-0007-y
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DOI: https://doi.org/10.1007/s10697-004-0007-y