Formative Process of Secondary Instability Flows by Forced Wavelength Goertler vortices
نویسندگان
چکیده
منابع مشابه
Secondary instability of crossflow vortices
Crossflow-dominated swept-wing boundary layers are known to undergo a highly nonlinear transition process. In low-disturbance environments, the primary instability of these flows consists mainly of stationary streamwise vortices that modify the mean velocity field and hence the stability characteristics of the boundary layer. The result is amplitude saturation of the dominant stationary mode an...
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Detailed comparison of spatial direct numerical simulations (DNS) and secondary linear stability theory (SLST) is provided for the three-dimensional crossflowdominated boundary layer also considered at the DLR-Göttingen for experiments and theory. Secondary instabilities of large-amplitude steady and unsteady crossflow vortices arising from one single primary mode have been analysed. SLST resul...
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ژورنال
عنوان ژورنال: Journal of the Visualization Society of Japan
سال: 2008
ISSN: 0916-4731,1884-037X
DOI: 10.3154/jvs.28.1037