Richard, Hugues und Raffel, Markus und Meier, G.E.A (2000) Background Oriented Stereoscopic Schlieren Applied to a Helicopter in Flight. In: American Helicopter Society 56th Annual Forum, Seiten 1-7. American Helicopter Society 56th Annual Forum, 2000-05-02 - 2000-05-04, Virginia Beach, VA, USA.
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Kurzfassung
In this paper we present a novel measurement technique based on the refractive index variation in a compressible flow field. This concept is referred to as "Background Oriented Schlieren" (BOS) in the following. The differences between BOS and other optical techniques which it can best be compared with, will be discussed. Experimental studies have been carried out to investigate the blade tip vortices of a BK117 helicopter in hover flight. An extension will be presented which uses two cameras placed in stereoscopic arrangement. Both techniques allow very easily to visualize compressible structures like tip vortices and seem to well complete other optical techniques like shadowgraph or schlieren, and additionally they give some quantitative informations.
elib-URL des Eintrags: | https://elib.dlr.de/128019/ | ||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Background Oriented Stereoscopic Schlieren Applied to a Helicopter in Flight | ||||||||||||||||
Autoren: |
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Datum: | 2000 | ||||||||||||||||
Erschienen in: | American Helicopter Society 56th Annual Forum | ||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||
Open Access: | Ja | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
Seitenbereich: | Seiten 1-7 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | Background oriented schlieren (BOS), BK117 helicopter | ||||||||||||||||
Veranstaltungstitel: | American Helicopter Society 56th Annual Forum | ||||||||||||||||
Veranstaltungsort: | Virginia Beach, VA, USA | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 2 Mai 2000 | ||||||||||||||||
Veranstaltungsende: | 4 Mai 2000 | ||||||||||||||||
Veranstalter : | American Helicopter Society (AHS) | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||
HGF - Programmthema: | Hubschrauber | ||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | L RR - Rotorcraft Research | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Der virtuelle Drehflügler (alt) | ||||||||||||||||
Standort: | Göttingen | ||||||||||||||||
Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO Institut für Aerodynamik und Strömungstechnik > Bodengebundene Fahrzeuge | ||||||||||||||||
Hinterlegt von: | Winkels, Elisabeth | ||||||||||||||||
Hinterlegt am: | 12 Jul 2019 10:06 | ||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:31 |
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