Original title: Some atypical flutter characteristics of the NACA0015 profile
Authors: Vlček, Václav ; Zolotarev, Igor ; Kozánek, Jan ; Štěpán, M.
Document type: Papers
Conference/Event: DYMAMESI 2016, Prague (CZ), 2016-03-01 / 2016-03-02
Year: 2016
Language: eng
Abstract: The part of the aeroelastic experiments with profile carried out in wind tunnel of the Institute of Thermomechanics, v.v.i. at stream velocity M = 0.15-0.38 in the interval of Reynolds numbers Re = (1.8-5.0)•105 is presented. The results relate to the self-excited vibration of the profile NACA0015, which had two degrees of freedom allowing rotation and transverse displacement of the profile. The elasticity of the two degrees of freedom support has not been, during the experiments, changed. The dependence of Strouhal numbers on the speed of the stream.has been obtained. In one case the excitation of an unstable state occured and during the measurement the jump to a stable state arised. The kinematics of the model during this transition is described.in detail.
Keywords: aeroelasticity; flutter; interferometry; subsonic flow
Project no.: GA13-10527S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2016, ISBN 978-80-87012-60-4

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0258705

Permalink: http://www.nusl.cz/ntk/nusl-203477


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers