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Investigation of boundary layer stability in a gradient flow with a high degree of free-stream turbulence

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Abstract

The results of an experimental investigation of boundary layer stability in a gradient flow with a high degree of free-stream turbulence are presented. The question of the possible artificial generation, the further development and the effect on laminar-turbulent transition of instability waves (Tollmien-Schlichting waves) in the boundary layer on a wing profile is considered for a level of free-stream turbulence ε=1.75% of the free-stream velocity; the sensitivity of the flow to the disturbances and their control by means of boundary layer suction are investigated.

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Authors and Affiliations

  1. Novosibirsk

    G. R. Grek, V. V. Kozlov & M. P. Ramazanov

Authors
  1. G. R. Grek
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  2. V. V. Kozlov
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  3. M. P. Ramazanov
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 52–58, March–April, 1990.

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Grek, G.R., Kozlov, V.V. & Ramazanov, M.P. Investigation of boundary layer stability in a gradient flow with a high degree of free-stream turbulence. Fluid Dyn 25, 207–213 (1990). https://doi.org/10.1007/BF01058969

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  • DOI: https://doi.org/10.1007/BF01058969

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