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Receptivity of the Swept Wing Boundary Layer to a Steady Flow Inhomogeneity

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Abstract

The boundary layer on a plate with an inclined blunt leading edge is investigated for a free-stream flow with a small span-periodic velocity inhomogeneity. This flow simulates the penetration of the outer turbulence into the swept wing boundary layer. It is shown that the boundary layer perturbations generated by the inhomogeneity generally have a streamwise velocity component significantly greater than the initial inhomogeneity amplitude. The dependence of the perturbations on the distance from the leading edge and the spanwise inhomogeneity period is found. It is shown that the swept wing boundary layer is less sensitive to the perturbation type in question than the straight wing boundary layer.

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Authors
  1. M. V. Ustinov
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Ustinov, M.V. Receptivity of the Swept Wing Boundary Layer to a Steady Flow Inhomogeneity. Fluid Dynamics 36, 437–447 (2001). https://doi.org/10.1023/A:1019240102926

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  • DOI: https://doi.org/10.1023/A:1019240102926

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