Engineering Mechanics

International Conference

Proceedings Vol. 15 (2009)


May 11 – 14, 2009, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2009 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-86246-35-2 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Comparison of numerically simulated pressure on the surface of a fluttering profile with experiment in wind tunnel
J. Horáček, V. Vlček, P. Sváček, M. Feistauer
pages 413 - 424, full text

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 NavierStokes (RANS) equations written in Arbitrary Lagrangian-Eulerian (ALE) form. The Spalart-Allmaras turbulence model is used. The flow is solved by the stabilized finite element method. The numerical results are compared with the optical measurements of flow field around a fluttering double circular arc (DCA) 18% profile elastically supported in a subsonic wind tunnel. The interferometry method was used for airflow visualization in different phases of the profile motion. The numerical results for the pressure on the profile surface are in good agreement with the measurement.

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All papers were reviewed by members of the scientific committee.

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