Numerical approximation of fluid-structure interaction problem in a closing channel near the stability boundary

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00349932" target="_blank" >RIV/68407700:21220/21:00349932 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-030-55874-1_107" target="_blank" >https://doi.org/10.1007/978-3-030-55874-1_107</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-55874-1_107" target="_blank" >10.1007/978-3-030-55874-1_107</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical approximation of fluid-structure interaction problem in a closing channel near the stability boundary

Popis výsledku v původním jazyce

This contribution deals with the numerical simulation of a fluid-structure interaction problem. The elastic body is modelled with the aid of a linear elasticity model. The fluid flow is described by the incompressible Navier-Stokes equations in the arbitrary Lagrangian-Eulerian formulation. The coupling conditions are specified and the coupled problem is formulated. The fluid-structure interaction problem is discretized by the finite element method solver applied both to the elastic part as well as to the fluid flow approximation. For the fluid flow approximation the residual based stabilization is used. Special attention is paid to the penalization boundary condition used at the inlet. It allows to relax an exact value of the inlet velocity on the boundary during channel closing phase nearly to complete channel closure. Numerical results for flow-induced vibrations near the stability boundary are presented and the critical velocity of flutter instability is determined.

Název v anglickém jazyce

Numerical approximation of fluid-structure interaction problem in a closing channel near the stability boundary

Popis výsledku anglicky

This contribution deals with the numerical simulation of a fluid-structure interaction problem. The elastic body is modelled with the aid of a linear elasticity model. The fluid flow is described by the incompressible Navier-Stokes equations in the arbitrary Lagrangian-Eulerian formulation. The coupling conditions are specified and the coupled problem is formulated. The fluid-structure interaction problem is discretized by the finite element method solver applied both to the elastic part as well as to the fluid flow approximation. For the fluid flow approximation the residual based stabilization is used. Special attention is paid to the penalization boundary condition used at the inlet. It allows to relax an exact value of the inlet velocity on the boundary during channel closing phase nearly to complete channel closure. Numerical results for flow-induced vibrations near the stability boundary are presented and the critical velocity of flutter instability is determined.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10102 - Applied mathematics

Projekt

<a href="/cs/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Centrum pokročilých leteckých technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Numerical Mathematics and Advanced Applications ENUMATH 2019

ISBN

978-3-030-55873-4

ISSN

1439-7358

e-ISSN

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Počet stran výsledku

9

Strana od-do

1079-1087

Název nakladatele

Springer International Publishing AG

Místo vydání

Cham

Místo konání akce

Egmond aan Zee, The Netherlands

Datum konání akce

30. 8. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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