Název:
Some experimentally determined properties of a profile in case of self-excited oscillations in subsonic flow
Autoři:
Vlček, Václav ; Zolotarev, Igor ; Kozánek, Jan ; Šidlof, Petr ; Štěpán, M. Typ dokumentu: Příspěvky z konference Konference/Akce: DYMAMESI 2017, Cracow (PL), 20170228
Rok:
2017
Jazyk:
eng
Abstrakt: In the wind tunnel of the Institute of Thermomechanics of the AS CR,v .v. i., experiments were realized with the profile NACA0015 in the presence of the self-excited oscillation. The oscillation of the profile with pitch and plunge degrees of freedom was excited by the subsonic air flow. The plunge support had the same elasticity for all experiments, the pitch support had seven different values of elasticity. Within experiments different types of self-excited vibration (flutter, stall flutter, deep stall flutter) were realized. Range of Mach numbers were M=0.08–0.45, when the chord length is used as the characteristic dimension of the profile. The frequency and amplitude characteristics of the oscillating profile were experimentally determined.\n
Klíčová slova:
aeroelasciticy; airfoil; dynamic stall; limit cycle oscillations; self -excited vibrations; stall flutter Číslo projektu: StrategieAV21/3 Poskytovatel projektu: AV ČR Zdrojový dokument: DYMAMESI 2017, ISBN 978-80-87012-62-8
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0273610