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This study is concerned with the transition of an incompressible boundary layer, with zero pressure gradient and low free-stream turbulence. Mean velocity, turbulence and Reynolds shear stress profiles are presented. The development of the TOLMIEN-SCHLICHTING waves is clearly shown until the turbulent spots appear. The intermittency phenomenon is studied by conditional sampling of the hot-wire 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.
Analyse experimentale et calcul de l'apparition et du development de la transition de la couche limite
Weitere Titelangaben:
Berechnungsverfahren der Grenzschicht der turbulenten Stroemung
Experimental analysis and calculation of the onset and development of the boundary layer transition