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Distribution of the pressure along the surface of a self-oscillating airfoil by flutter
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SYSNO ASEP 0329143 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Distribution of the pressure along the surface of a self-oscillating airfoil by flutter Title Rozložení tlaku podél plochy samobuzeně kmitajícího leteckého profilu při flateru Author(s) Horáček, Jaromír (UT-L) RID, ORCID
Sváček, P. (CZ)
Vlček, Václav (UT-L) RID
Feistauer, M. (CZ)Source Title IFASD 2009 Proceedins. - Seattle Washington : Azimuth Corporation, 2009 / Kolonay R. ; Snyder R. - ISBN N Pages s. 1-15 Number of pages 15 s. Publication form CD-ROM - CD-ROM Action IFASD 2009 - International Forum on Aeroelasticity and Structural Dynamics) Event date 21.06.2009-25.06.2009 VEvent location Seattle Washington Country US - United States Event type WRD Language eng - English Country US - United States Keywords aeroelasticity ; finite element method ; numerical simulation ; flutter testing in wind tunnel Subject RIV BI - Acoustics R&D Projects IAA200760613 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The study deals with numerical solution of a 2D aerostatic problem supported by comparison of the theoretical approach with the original experimental results. A coupled formulation of a turbulent flow over a solid airfoil oscillating with two degrees of degrees of freedom for rotation and translation with large vibration amplitudes is considered. The flow is described by the incompressible Reynolds averaged Navier-Stokes (RANS) equations rewritten in Arbitrary Lagrangian-Eulerian (ALE) form. The Spalart-Allmaras turbulence model is used. The fluid flow is solved by the stabilized finite element method (FEM). The numerical results are compared with the results of optical measurements of flow field around a vibrating double circular are (DCA) 18% profile elastically supported in the wind tunnel. The numerical results for the time dependent pressure on the fluttering airfoil surface as well as the time dependent lifting force are in good agreement with the experimental data. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2010
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