Assessment of flutter origin in simplified blade cascade with prescribed harmonic motion

0465211 - ÚT 2017 RIV CZ eng A - Abstrakt
Bublík, O. - Vimmr, J. - Pecka, A. - Pešek, Luděk
Assessment of flutter origin in simplified blade cascade with prescribed harmonic motion.
Computational Mechanics 2016 - book of extended abstracts. Plzeň: University of West Bohemia, 2016 - (Adámek, V.; Jonášová, A.; Zajíček, M.). s. 7-8. ISBN 978-80-261-0647-0.
[Computational Mechanics 2016 /32./. 31.10.2016-02.11.2016, Špičák]
Grant CEP: GA ČR GA16-04546S
Institucionální podpora: RVO:61388998
Klíčová slova: flutter * Navier-Stokes equations * Arbitrary Lagrangian-Eulerian
Kód oboru RIV: BI - Akustika a kmity

A dynamic instability of blades the in blade cascade caused by fluid flow, formally known as flutter, is still a subject of interest. For the purpose of this study, we choose the travelling wave mode approach for the numerical modelling of the unsteady flow and flutter analysis in the simplified blade cascade formed by three flat plates. As a mathematical model, the system of Navier-Stokes equations, which describes the flow of compressible viscouse fluid, was considered. A one-equation turbulence model of Spalart and Allmaras was used solved by the discontinuous Galerkin finite element method . To capture the blade motion, the equations were considered in ALE (Arbitrary Lagrangian-Eulerian) form.
Trvalý link: http://hdl.handle.net/11104/0266673