Summary
The process of the formation of a turbulent spot in a laminar boundary layer on a flat plate in incompressible fluid has been analyzed numerically. The initial disturbance is introduced by a local distortion of the plate. The analysis has been made for large Reynolds numbers within the framework of triple-deck theory. All stages of the flow evolution has been traced - through the formation of a linear wave packet from the unstable Tollmien-Schlichting waves and then its nonlinear deformation and disintegration. This process results in localized ejections of the near-wall fluid (bursts) and leads to the formation of a characteristic arrow shape of a turbulent spot observed in experiments.
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© 1995 Springer-Verlag Berlin Heidelberg
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Kazakov, V.A. (1995). Analysis of the Formation of a Turbulent Spot in a Laminar Boundary Layer. In: Kobayashi, R. (eds) Laminar-Turbulent Transition. IUTAM Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-79765-1_22
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DOI: https://doi.org/10.1007/978-3-642-79765-1_22
Publisher Name: Springer, Berlin, Heidelberg
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