Titlebook: Recent Results in Laminar-Turbulent Transition; Selected numerical a Siegfried Wagner,Markus Kloker,Ulrich Rist Conference proceedings 2004

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Direct Numerical Simulation of Instabilities in the Compressible Swept Hiemenz Flowt-line flow on an infinite swept wing. Its linear stability has been investigated by Hall et al. [1] under the assumption of Görtler-Hämmerlin perturbation modes. The hydrodynamic stability of its weakly compressible counterpart, obtained via a small Mach number expansion, is studied here using a te

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Generation and Control of Oblique Tollmien-Schlichting Waves in a Blasius Boundary Layerden University of Technology (TUD) has investigated instability waves in a laminar boundary layer on a flat plate. Two dimensional Tollmien-Schlichting-Waves (TSW) have been subject of the experiments as well as oblique waves and disturbances emitted by point sources..The measurements were performed

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Active Control of Boundary-Layer Instabilities on an Unswept Wingnical University of Berlin. TS disturbances in their linear stage of development can be reduced by superimposition with artificially generated counter waves. The energy effort of this method is considerably lower than of a stabilization of the local mean velocity profile by means of boundary layer s

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Propagation of Tollmien-Schlichting Waves in a Wing Boundary Layerer to investigate under conditions of natural excitement Tollmien-Schlichting waves as primary instabilities in transition to turbulence. Measurements were done with a 64 element hot-film array. The array was bonded to a laminar glove on the right hand wing of the flying testbed LFU 205. Amplitudes