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.
Similar content being viewed by others
REFERENCES
M. V. Morkovin, "The many faces of transition, ” in: C. S. Wells, Viscous Drag Reduction, Plenum Press, N. Y., 1969, P. 1.
K. J. A. Westin, A. V. Boiko, B. G. B. Klingmann, V. V. Kozlov, and P. H. Alfredsson, "Experiments in a boundary layer subjected to free stream turbulence. Pt. I: Boundary layer structure and receptivity," J. Fluid Mech., 281, 193 (1994).
A. N. Gulyaev, V. E. Kozlov, V. P. Kuznetsov, B. I. Mineev, and A. N. Sekundov, "Interaction of a laminar boundary layer with outer turbulence," Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 5, 55 (1989).
F. P. Bertolotti, "Response of the Blasius boundary layer to free-stream vorticity," Phys. Fluids, 9, 2286 (1997).
F. P. Bertolotti and J. M. Kendall, "Response of the Blasius boundary layer to controlled free-stream vortices of axial form," AIAA Paper, No. 97–2018 (1997).
A. N. Gulyaev, V. E. Kozlov, and V. P. Kuznetsov, "Penetration of three-dimensional low-frequency free-stream velocity fluctuations into laminar boundary layer on a flat plate," Tr. TsIAM, No. 1287, 197 (1991).
P. Andersson, M. Berggren, and D. S. Henningson, "Optimal disturbances and bypass transition in boundary layers," Phys. Fluids, 11, 134 (1999).
M. E. Goldstein, S. J. Leib, and S. J. Cowley, "Distortion of a flat plate boundary layer by free-stream vorticity normal to the plate," J. Fluid Mech., 237, 231 (1992).
O. S. Ryzhov and S. V. Timofeev, "Interaction of a vortex with a local surface roughness," Mat. Modelirovanie, 4, No. 6, 27 (1992).
P. W. Duck, A. I. Ruban, and C. N. Zhikharev, "The generation of Tollmien-Schlichting waves by free-stream turbulence," J. Fluid Mech., 312, 341 (1996).
S. C. Crow, "The spanwise perturbations of two-dimensional boundary layers," J. Fluid Mech., 24, 153 (1966).
M. D. Van Dyke, Perturbation Methods in Fluid Mechanics, Academic Press, New York (1964).
M. V. Ustinov, "Receptivity of the boundary layer on a flat plate with blunt leading edge to a steady free-stream inhomogeneity," Zh. Prikl. Mekh. Tekh. Fiz., No. 4, 93 (2000).
L. D. Landau and E. M. Lifshitz, Theoretical Physics. Vol. 6. Hydrodynamics [in Russian], Nauka, Moscow (1986).
Rights and permissions
About this article
Cite this article
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
Issue Date:
DOI: https://doi.org/10.1023/A:1025193905823