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Experimental analysis and computation of the onset and development of the boundary layer transitionThe transition of an incompressible boundary layer, with zero pressure gradient and low free-stream turbulence is studied. Mean velocity, turbulence and Reynolds shear stress profiles are presented. The development of the Tollmien-Schlichting waves is clearly shown until the turbulent spots appear. The intermittency phenomenon is studied by conditional sampling of the hotwire signal. The comparison with calculation results obtained by resolution of a set of transport equations shows a good agreement for the mean characteristics of the flow; discrepancies observed for the turbulent quantities evolution are due to the intermittency phenomenon.
Document ID
19780025098
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Arnal, D. (NASA Headquarters Washington, DC United States)
Juillen, J. C. (NASA Headquarters Washington, DC United States)
Michel, R. (NASA Headquarters Washington, DC United States)
Date Acquired
September 3, 2013
Publication Date
August 1, 1978
Subject Category
Aerodynamics
Report/Patent Number
NASA-TM-75325
ONERA-TP-1977-54
Report Number: NASA-TM-75325
Report Number: ONERA-TP-1977-54
Meeting Information
Meeting: AGARD Symp. on Laminar-Turbulent Transition
Location: Copenhagen
Start Date: May 2, 1977
End Date: May 4, 1977
Accession Number
78N33041
Funding Number(s)
CONTRACT_GRANT: NASW-2791
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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