Particle image velocimetry of streaky structures in a laminar separation bubble
Boiko, Andrey, V. and Dovgal, Alexander, V. and Hein, Stefan and Henning, Arne and Sorokin, Alexander (2008) Particle image velocimetry of streaky structures in a laminar separation bubble. DLR-Interner Bericht. DLR-IB 224 - 2008 A 20.
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Laminar boundary-layer separation at a backward-facing step of a flat plate has been investigated with Particle Image Velocimetry (PIV). The experiments focused on velocity perturbations induced in the separation region by arrays of roughness elements spaced on the model surface close to the separation line. As a result, the perturbed separated-flow flow pattern is clarified being in fairly good agreement with that which was observed through hot-wire measurements performed under similar experimental conditions in similar flow configurations.
|Document Type:||Monograph (DLR-Interner Bericht)|
|Title:||Particle image velocimetry of streaky structures in a laminar separation bubble|
|In ISI Web of Science:||No|
|Keywords:||laminar boundary-layer separation, backward-facing step, flow control, roughness elements, Particle Image Velocimetry|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
Institute of Aerodynamics and Flow Technology > Experimental Methods
|Deposited By:||Dr.-Ing. Stefan Hein|
|Deposited On:||19 Aug 2008|
|Last Modified:||14 Jan 2010 23:51|
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