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Space-time double correlations and spectra in a turbulent boundary layer

Published online by Cambridge University Press:  28 March 2006

A. J. Favre ,
J. J. Gaviglio  and
R. Dumas
A. J. Favre
Affiliation:
Laboratoire de Mécanique de l'Atmosphère, Université de Marseille
J. J. Gaviglio
Affiliation:
Laboratoire de Mécanique de l'Atmosphère, Université de Marseille
R. Dumas
Affiliation:
Laboratoire de Mécanique de l'Atmosphère, Université de Marseille
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Abstract

This paper describes the results of an experimental investigation of the turbulent boundary layer on a flat plate with zero pressure gradient, carried out at the Laboratoire de Mécanique de l'Atmosphère (I. M. F. Marseille). Transition to turbulent flow was obtained either by increasing the preturbulence upstream of the plate by means of a grid, or by a series of emery paper roughness elements beginning at the leading edge. The measurements were of the space-time double correlations, i.e. double velocity correlations with both spatial separation and time delay, from which isocorrelation lines for optimum delay can be drawn, and of the spectrum function, all for the longitudinal component of the velocity fluctuation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 2 , Issue 4 , June 1957 , pp. 313 - 342
Copyright
© 1957 Cambridge University Press

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