Original title: Experimenty se symetrickým profilem pří rychlosti blízké zániku stall-flutteru
Translated title: Symetric profile experiments with a velocity near the stall-flutter cut-off
Authors: Vlček, Václav ; Zolotarev, Igor ; Kozánek, Jan
Document type: Papers
Conference/Event: DYMAMESI 2014, Praha (CZ), 2014-11-25 / 2014-11-26
Year: 2014
Language: cze
Abstract: [cze] [eng]
V aerodynamickém tunelu Ústavu termomechaniky AV ČR byly uskutečněny elastické experimenty s profilem NACA0015 uloženým jako dynamický systém se dvěma stupni volnosti. Pozornost byla soustředěna na chování profilu při rychlostech proudu vzduchu blízkých zániku tzv. stall-flutteru. Rychlostní pole bylo měřeno pomocí Machova-Zehnderova interferometru, interferogramy byly zaznamenány vysokorychlostní kamerou. Byly studovány změny rychlosti na chování profilu. Aeroelastic experiments with the profile NACA0015 with two degrees of freedom were realized in aerodynamic tunnel of the Institute of Thermomechanics, Czech Academy of Sciences, Prague. Attention was concentrated to the profile behaviour at velocity where the profile is just on the end of the velocity interval, where stall-flutter occurs. The flow field was measured with Mach-Zehnder interferometer, interferograms were registered with the high speed camera. Difference in the profile behaviour in these conditions was registered.
Keywords: aeroelasticity,,,; flutter; interferometry; subsonic flow
Project no.: GA13-10527S (CEP)
Funding provider: GA ČR
Host item entry: DYMAMESI 2014 : Dynamics of machines and mechanical systems with interactions, ISBN 978-80-87012-54-3

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/11104/0241597

Permalink: http://www.nusl.cz/ntk/nusl-180333


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