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Comparison of numerically simulated pressure on the surface of a fluttering profile with experiment in wind tunnel
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SYSNO ASEP 0324425 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Comparison of numerically simulated pressure on the surface of a fluttering profile with experiment in wind tunnel Title Porovnání numerické simulace tlaku na povrchu třepetajícího se profilu s experimentem v aerodynamickém tunelu Author(s) Horáček, Jaromír (UT-L) RID, ORCID
Sváček, Petr (UT-L) RID
Vlček, Václav (UT-L) RID
Feistauer, M. (CZ)Source Title Engineering Mechanics 2009. - Praha : ÚTAM, 2009 / Náprstek, J. ; Fischer C. - ISBN 978-80-86246-35-2 Pages s. 84-85 Number of pages 2 Publication form CD - CD Action Engineering mechanics 2009 Event date 11.05.2009-14.05.2009 VEvent location Svratka Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords fluttering profile ; RANS equations ; subsonic wind tunel Subject RIV BI - Acoustics R&D Projects GA101/09/1522 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The paper compares original experimental results with numerical solution of a 2D aeroelastic problem. The incompressible turbulent flow over a freely vibrating airfoil, with two degrees of freedom for rotation and translation with large vibration amplitudes, is described by the Reynolds averaged Navier Stokes (RANS) equations written in Arbitrary Lagrangian-Eulerian (ALE) form. The Spalart-Allmaras turbulence model is used and the flow is solved by the stabilized FEM. The numerical results are compared with the optical measurements of flow field araund a fluttering doublecircular arc (DCA) 18% profile elastcally supported in a subsonic wind tunnel. The interferometry method was used for airflow visualization in different phases of the profile motion. The numerical resulults for the pressure on the profile surface are in good agreement with the measurement. 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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