Data-enabled prediction of streak breakdown in pressure-gradient boundary layers

Streaks in pre-transitional boundary layers are analysed and their properties are extracted from direct numerical simulation data. Streaks that induce breakdown to turbulence via secondary instability are shown to differ from the remainder of the population in various attributes. Conditionally avera...

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Vydáno v:	Journal of fluid mechanics Ročník 801; s. 43 - 64
Hlavní autoři:	Hack, M. J. Philipp, Zaki, Tamer A.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Cambridge, UK Cambridge University Press 25.08.2016
Témata:	Amplitude Artificial neural networks Boundary layer Boundary layer transition Boundary layers Breakdown Computational fluid dynamics Computer applications Computer simulation Direct numerical simulation Fluids Information storage Instability Mathematical models Mechanical engineering Momentum Neural networks Pressure Pressure gradients Probability density functions Probability theory Properties Simulation Spots Stability Studies Transportation networks Turbulence Velocity Vortices boundary layer stability transition to turbulence instability
ISSN:	0022-1120, 1469-7645
On-line přístup:	Získat plný text
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