Direct numerical simulation of the transition to turbulence in a supersonic boundary layer on smooth and rough surfaces
- Authors: Khotyanovsky D.V.1, Kudryavtsev A.N.1
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Affiliations:
- Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch
- Issue: Vol 58, No 5 (2017)
- Pages: 826-836
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/160329
- DOI: https://doi.org/10.1134/S002189441705008X
- ID: 160329
Cite item
Abstract
Direct numerical simulations of instability development and transition to turbulence in a supersonic boundary layer on a flat plate are performed. The computations are carried out for moderate supersonic (free-stream Mach number M = 2) and hypersonic (M = 6) velocities. The boundary layer development is simulated, which includes the stages of linear growth of disturbances, their nonlinear interaction, stochastization, and turbulent flow formation. A laminar–turbulent transition initiated by distributed roughness of the plate surface at the Mach number M = 2 is also considered.
About the authors
D. V. Khotyanovsky
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch
Author for correspondence.
Email: khotyanovsky@itam.nsc.ru
Russian Federation, Novosibirsk, 630090
A. N. Kudryavtsev
Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch
Email: khotyanovsky@itam.nsc.ru
Russian Federation, Novosibirsk, 630090