NUMERICAL ANALYSIS OF FLUTTER INSTABILITY IN SIMPLIFIED BLADE CASCADE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43950768" target="_blank" >RIV/49777513:23520/17:43950768 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

NUMERICAL ANALYSIS OF FLUTTER INSTABILITY IN SIMPLIFIED BLADE CASCADE

Popis výsledku v původním jazyce

In this paper the occurrence of flutter in a simplified blade cascade is analysed. The simplified blade cascade is formed by three flat plates, which perform a kinematic harmonic motion, each with a different inter-blade phase angle. The inter-blade phase angles are chosen in order for travelling wave mode of vibration to be present. The aim of the simulations is to determine the aerodynamic damping coefficients caused by the aerodynamic forces acting on the flat plates, which show whether flutter occurs. The non-linear system of Favre-averaged Navier- Stokes equations in ALE formulation completed by the Spalart-Allmaras turbulence model was chosen as the mathematical model. The simulations were performed using the developed inhouse CFD software FlowPro based on the discontinuous Galerkin method, which offers high order of accuracy.

Název v anglickém jazyce

NUMERICAL ANALYSIS OF FLUTTER INSTABILITY IN SIMPLIFIED BLADE CASCADE

Popis výsledku anglicky

In this paper the occurrence of flutter in a simplified blade cascade is analysed. The simplified blade cascade is formed by three flat plates, which perform a kinematic harmonic motion, each with a different inter-blade phase angle. The inter-blade phase angles are chosen in order for travelling wave mode of vibration to be present. The aim of the simulations is to determine the aerodynamic damping coefficients caused by the aerodynamic forces acting on the flat plates, which show whether flutter occurs. The non-linear system of Favre-averaged Navier- Stokes equations in ALE formulation completed by the Spalart-Allmaras turbulence model was chosen as the mathematical model. The simulations were performed using the developed inhouse CFD software FlowPro based on the discontinuous Galerkin method, which offers high order of accuracy.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA16-04546S" target="_blank" >GA16-04546S: Aeroelastické vazby a dynamické chování rotačně periodických těles</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

COMPDYN 2017 - Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering

ISBN

978-618-82844-2-5

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

13

Strana od-do

3795-3807

Název nakladatele

National Technical University of Athens

Místo vydání

Athens

Místo konání akce

Rhodes Island, Greece

Datum konání akce

15. 12. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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