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Receptivity of the Flat-Plate Boundary Layer to Free-Stream Turbulence

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Abstract

The linear problem of generation of perturbations of a flat-plate boundary layer by external turbulence is solved. The turbulence is represented in the form of a set of space- and time-periodic vortex modes. It is shown that the boundary layer is most receptive to low-frequency longitudinal vorticity modes. The mean-square velocity fluctuations in the boundary layer and their spectrum are found for isotropic turbulence with a spectrum satisfying the Kolmogorov-Obukhov law.

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Ustinov, M.V. Receptivity of the Flat-Plate Boundary Layer to Free-Stream Turbulence. Fluid Dynamics 38, 397–408 (2003). https://doi.org/10.1023/A:1025193905823

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  • DOI: https://doi.org/10.1023/A:1025193905823

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