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Erschienen in: Fluid Dynamics 5/2020

01.09.2020

Influence of the Entropy Layer on Turbulence Transition of the Supersonic Boundary Layer in the Wake with Isolated Roughnesses

verfasst von: I. O. Pogorelov, P. V. Chuvakhov

Erschienen in: Fluid Dynamics | Ausgabe 5/2020

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Abstract—

The influence of the entropy layer generated by a small bluntness of the flat plate leading edge on laminar-turbulent supersonic boundary layer transition in the wake behind isolated roughness elements located on the plate surface is studied when the bluntness radius is varied. The experiments are carried out at the Mach number M = 6 over the Reynolds number range (0.4–2.3) × 106. The Reynolds number is calculated on the basis of the free-stream parameters at the point of roughness. The well-known correlation dependences are verified and the transition criterion is estimated.

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Metadaten
Titel
Influence of the Entropy Layer on Turbulence Transition of the Supersonic Boundary Layer in the Wake with Isolated Roughnesses
verfasst von
I. O. Pogorelov
P. V. Chuvakhov
Publikationsdatum
01.09.2020
Verlag
Pleiades Publishing
Erschienen in
Fluid Dynamics / Ausgabe 5/2020
Print ISSN: 0015-4628
Elektronische ISSN: 1573-8507
DOI
https://doi.org/10.1134/S0015462820050110

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