Hein, Stefan (2005) High-resolution nonlinear nonlocal instability analysis of crossflow-dominated transition scenarios. STAB-Workshop, 2005-11-08 - 2005-11-11, Göttingen.
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Crossflow-dominated laminar-turbulent transition in three-dimensional boundary layers is studied by nonlinear parabolized stability equations (PSE). It is demonstrated that the strongly nonlinear stages of the transition process, i.e. the formation of high-frequency secondary instabilities, their linear and nonlinear growth as well as the subsequent disintegration of the secondary disturbance structures which is accompanied by a degradation of the stationary crossflow vortices can be modelled by this type approach provided that sufficiently high resolution in modal space is used.
|Document Type:||Conference or Workshop Item (Speech)|
|Title:||High-resolution nonlinear nonlocal instability analysis of crossflow-dominated transition scenarios|
|In ISI Web of Science:||No|
|Keywords:||crossflow-dominated transition, secondary instability, NOLOT/PSE|
|Event Type:||national Conference|
|Event Dates:||2005-11-08 - 2005-11-11|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L -- no assignement|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
|Deposited By:||Elisabeth Winkels|
|Deposited On:||26 Jan 2006|
|Last Modified:||27 Apr 2009 04:57|
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