Stauber, Wolfgang (2018) Evaluation of the Tip Vortex Flowfield at the Rotor Test Facility Göttingen. Masterarbeit, Universität Göttingen.
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Kurzfassung
This thesis describes and evaluates experiments conducted on a rotor test facility with a focus on blade tip vortices. The flow field of a four-bladed rotor was studied with the particle image velocimetry (PIV) method to visualise the flow field. The experimental setup and procedure is described in detail as well as the computer based evaluation techniques. Interesting vortex interaction is discovered and interaction and vortex parametres are studied when varying parametres such as blade angle of incidence and axial inflow speed. A basic understanding of blade tip interaction for the test facility is gained and experimental data for future investigations is gathered. Vortex interaction is found to occur when axial inflow is sufficiently slow, suggesting the interaction to be caused as an effect of vortex separation. Studies of vortex merging and effects of Phase averaging PIV images are also discussed.
elib-URL des Eintrags: | https://elib.dlr.de/120323/ | ||||||||
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Dokumentart: | Hochschulschrift (Masterarbeit) | ||||||||
Titel: | Evaluation of the Tip Vortex Flowfield at the Rotor Test Facility Göttingen | ||||||||
Autoren: |
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Datum: | Mai 2018 | ||||||||
Referierte Publikation: | Ja | ||||||||
Open Access: | Nein | ||||||||
Seitenanzahl: | 71 | ||||||||
Status: | veröffentlicht | ||||||||
Stichwörter: | Vortex Pairing, Vortex Instability, Tip Vortex System, Particle Image Velocimetry (PIV), Rotor Test Facility Göttingen, RTG | ||||||||
Institution: | Universität Göttingen | ||||||||
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 | ||||||||
Hinterlegt von: | Winkels, Elisabeth | ||||||||
Hinterlegt am: | 14 Jun 2018 14:37 | ||||||||
Letzte Änderung: | 14 Jun 2018 14:37 |
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