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Numerical Simulation of Airfoil Vibrations Induced by Turbulent Flow
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SYSNO ASEP 0437115 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Numerical Simulation of Airfoil Vibrations Induced by Turbulent Flow Tvůrce(i) Feistauer, M. (CZ)
Horáček, Jaromír (UT-L) RID, ORCID
Sváček, P. (CZ)Zdroj.dok. Communications in Computational Physics. - : Global Science Press - ISSN 1815-2406
Roč. 17, č. 1 (2015), s. 146-188Poč.str. 43 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CN - Čína Klíč. slova fluid-structure interaction ; flow induced vibrations ; turbulence models ; finite element method Vědní obor RIV BI - Akustika a kmity CEP GAP101/11/0207 GA ČR - Grantová agentura ČR Institucionální podpora UT-L - RVO:61388998 UT WOS 000353692300006 EID SCOPUS 84925788899 DOI 10.4208/cicp.181213.230514a Anotace The subject of the paper is the numerical simulation of the interaction of two-dimensional incompressible viscous flow and a vibrating airfoil with large amplitudes. The airfoil with three degrees of freedom performs rotation around an elastic axis, oscillations in the vertical direction and rotation of a flap. The numerical simulation consists of the finite element solution of the Reynolds averaged Navier-Stokes equations combined with Spalart-Allmaras or κ–ω turbulence models, coupled with a system of nonlinear ordinary differential equations describing the airfoil motion with consideration of large amplitudes. The time-dependent computational domain and approximation on a moving grid are treated by the Arbitrary Lagrangian-Eulerian formulation of the flow equations. Due to large values of the involved Reynolds numbers an application of a suitable stabilization of the finite element discretization is employed. The developed method is used for the computation of flow-induced oscillations of the airfoil near the flutter instability, when the displacements of the airfoil are large, up to ±40 degrees in rotation. The paper contains the comparison of the numerical results obtained by both turbulence models. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2016
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