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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Porovnání numerické simulace tlaku na povrchu třepetajícího se profilu s experimentem v aerodynamickém tunelu
 Horáček, Jaromír ; Sváček, Petr ; Vlček, Václav ; Feistauer, M.
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.
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