About: Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom

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About: Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.sciencedirect.com/science/article/pii/S0045793011001538
Description	The subject of the paper is the numerical simulation of the interaction of 2D incompressible viscous flow and an airfoil vibrating with large amplitudes. The numerical simulation consists of the FE solution of the Navier-Stokes equations coupled with a system of nonlinear ordinary differential equations describing the airfoil motion. The time-dependent computational domain is treated by the ALE method and by a suitable stabilization of the FE discretization. We analyze the convergence of the method, if the computational mesh is refined and the time step is successively decreased. Also the effect of the loose and strong coupling of the flow and structure problems is tested. The applicability of the method is demonstrated by the comparison with NASTRAN computations and the solution of the coupled fluid-structure problem with increasing far-field velocity up to and behind the flutter instability. The developed method can be used in theoretical prediction of dynamic behaviour of aeroelastic systems especially when the stability has been lost. The subject of the paper is the numerical simulation of the interaction of 2D incompressible viscous flow and an airfoil vibrating with large amplitudes. The numerical simulation consists of the FE solution of the Navier-Stokes equations coupled with a system of nonlinear ordinary differential equations describing the airfoil motion. The time-dependent computational domain is treated by the ALE method and by a suitable stabilization of the FE discretization. We analyze the convergence of the method, if the computational mesh is refined and the time step is successively decreased. Also the effect of the loose and strong coupling of the flow and structure problems is tested. The applicability of the method is demonstrated by the comparison with NASTRAN computations and the solution of the coupled fluid-structure problem with increasing far-field velocity up to and behind the flutter instability. The developed method can be used in theoretical prediction of dynamic behaviour of aeroelastic systems especially when the stability has been lost. (en)
Title	Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom (en)
skos:prefLabel	Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom Numerical analysis of flow-induced nonlinear vibrations of an airfoil with three degrees of freedom (en)
skos:notation	RIV/61388998:_____/11:00362740!RIV12-AV0-61388998
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA201/08/0012), P(GAP101/11/0207), Z(AV0Z20760514), Z(MSM0021620839)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Horáček, Jaromír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	216752
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/11:00362740
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	aeroelasticity; Navier-Stokes equation; non-linear oscillations; flutter instability (en)
http://linked.open.../riv/klicoveSlovo	aeroelasticity Navier-Stokes equation flutter instability non-linear oscillations
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[CE7179E9297F]
http://linked.open...i/riv/nazevZdroje	Computers & Fluids
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Qualitative analysis and numerical solution of flow problems Coupled problems of fluid and solid mechanics - nonlinear aeroelasticity
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Horáček, Jaromír Růžička, M. Feistauer, M. Sváček, P.
http://linked.open...ain/vavai/riv/wos	000293941100010
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics Metody moderní matematiky a jejich aplikace
issn	0045-7930
number of pages	18 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.compfluid.2011.05.004

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