Instabilities and transition in boundary layers |
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Authors: | N Vinod Rama Govindarajan |
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Institution: | (1) Engineering Mechanics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, 560 064 Bangalore, India |
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Abstract: | Some recent developments in boundary layer instabilities and transition are reviewed. Background disturbance levels determine
the instability mechanism that ultimately leads to turbulence. At low noise levels, the traditional Tollmien-Schlichting route
is followed, while at high levels, a ‘by-pass’ route is more likely. Our recent work shows that spot birth is related to the
pattern of secondary instability in either route. |
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Keywords: | Boundary layer stability |
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