Merz, Christoph B. und Wolf, Christian und Richter, Kai und Kaufmann, Kurt und Mielke, Alina und Raffel, Markus (2017) Spanwise Differences in Static and Dynamic Stall on a Pitching Rotor Blade Tip Model. Journal of the American Helicopter Society, 62 (1), Seiten 1-11. American Helicopter Society. doi: 10.4050/JAHS.62.012002. ISSN 0002-8711.
Dieses Archiv kann nicht den Volltext zur Verfügung stellen.
Offizielle URL: https://doi.org/10.4050/JAHS.62.012002
Kurzfassung
An experimental investigation of static and dynamic stall on a rotor blade tip model with an aspect ratio of 6.2 at a chord Reynolcls number of900 ,000 and a Mach numbcr of0.16 is presented. The spatiotemporal behavior of the flow separation was analyzed using unstcady surface pressurc measurements ancl high-speecl particle image velocimetry. The maximum effective angle of attack prior to stall is shiftecl to approximately two-thirds of the span outboard because of an increasing geometric angle of attack of the model towarcl the tip. Different stages of flow separation for static angles of attack were identified, inclucling the occurrence of two stall cells. Du ring dynamic stall, the leacling edge vortcx formation starts near the spanwise position of thc static stall onset. The subsequent spanwise evolution of the vortex formation results in two vorticcs for deep stall conclitions, covering the samc spanwisc arcas as thc two static stall cclls.
elib-URL des Eintrags: | https://elib.dlr.de/116259/ | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Zusätzliche Informationen: | http://www.ingentaconnect.com/content/ahs/jahs | ||||||||||||||||||||||||||||
Titel: | Spanwise Differences in Static and Dynamic Stall on a Pitching Rotor Blade Tip Model | ||||||||||||||||||||||||||||
Autoren: |
| ||||||||||||||||||||||||||||
Datum: | Januar 2017 | ||||||||||||||||||||||||||||
Erschienen in: | Journal of the American Helicopter Society | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | 62 | ||||||||||||||||||||||||||||
DOI: | 10.4050/JAHS.62.012002 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1-11 | ||||||||||||||||||||||||||||
Herausgeber: |
| ||||||||||||||||||||||||||||
Verlag: | American Helicopter Society | ||||||||||||||||||||||||||||
ISSN: | 0002-8711 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Dynamic Stall, Particle Image Velocimetry, Wind Tunnel Testing | ||||||||||||||||||||||||||||
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 > Hochgeschwindigkeitskonfigurationen, GO | ||||||||||||||||||||||||||||
Hinterlegt von: | Bachmann, Barbara | ||||||||||||||||||||||||||||
Hinterlegt am: | 07 Dez 2017 15:35 | ||||||||||||||||||||||||||||
Letzte Änderung: | 02 Nov 2023 15:03 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags