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Boiko, Andrey, V. und Dovgal, Alexander, V. und Hein, Stefan und Henning, Arne und 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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Kurzfassung
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.
| elib-URL des Eintrags: | https://elib.dlr.de/54874/ | ||||||||||||||||||||||||
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| Dokumentart: | Berichtsreihe (DLR-Interner Bericht) | ||||||||||||||||||||||||
| Titel: | Particle image velocimetry of streaky structures in a laminar separation bubble | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | Juli 2008 | ||||||||||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | laminar boundary-layer separation, backward-facing step, flow control, roughness elements, Particle Image Velocimetry | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Starrflügler (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren | ||||||||||||||||||||||||
| Hinterlegt von: | Hein, Dr.-Ing. Stefan | ||||||||||||||||||||||||
| Hinterlegt am: | 19 Aug 2008 | ||||||||||||||||||||||||
| Letzte Änderung: | 14 Jan 2010 23:51 |
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