CFD Analysis of Flow in a Blade Cascade Deformed Due to Forced Torsional Vibration

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00547896" target="_blank" >RIV/61388998:_____/21:00547896 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/21:00009159

Výsledek na webu

<a href="http://dx.doi.org/10.14311/TPFM.2021.020" target="_blank" >http://dx.doi.org/10.14311/TPFM.2021.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/TPFM.2021.020" target="_blank" >10.14311/TPFM.2021.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CFD Analysis of Flow in a Blade Cascade Deformed Due to Forced Torsional Vibration

Popis výsledku v původním jazyce

The paper presents a 3D numerical simulation of flow in a blade cascade, whose geometry models the test section of a new experimental facility for blade flutter research. In the experimental setup, the middle blade of the cascade undergoes high-frequency forced sinusoidal pitching oscillation. Due to inertial forces, the slender blade deforms elastically to certain degree. The goal of this study is to assess the influence of the elastic deformation on the flow field. To compute the deformed geometry, a transient structural analysis was performed. In the second part, the CFD model of flow past a 3D blade cascade with deformed and undeformed blade is presented and these two configurations are compared. For the deformed configuration the incidence angle increases along the blade span from -1.8° to -2.7°. However, the Mach number distribution along the span varies less than expected. blade cascade, flutter, turbomachinery, CFD

Název v anglickém jazyce

CFD Analysis of Flow in a Blade Cascade Deformed Due to Forced Torsional Vibration

Popis výsledku anglicky

The paper presents a 3D numerical simulation of flow in a blade cascade, whose geometry models the test section of a new experimental facility for blade flutter research. In the experimental setup, the middle blade of the cascade undergoes high-frequency forced sinusoidal pitching oscillation. Due to inertial forces, the slender blade deforms elastically to certain degree. The goal of this study is to assess the influence of the elastic deformation on the flow field. To compute the deformed geometry, a transient structural analysis was performed. In the second part, the CFD model of flow past a 3D blade cascade with deformed and undeformed blade is presented and these two configurations are compared. For the deformed configuration the incidence angle increases along the blade span from -1.8° to -2.7°. However, the Mach number distribution along the span varies less than expected. blade cascade, flutter, turbomachinery, CFD

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA20-11537S" target="_blank" >GA20-11537S: Experimentální výzkum budicí funkce flutteru v turbostrojích</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Topical Problems of Fluid Mechanics 2021

ISBN

978-80-87012-76-5

ISSN

2336-5781

e-ISSN

—

Počet stran výsledku

8

Strana od-do

149-156

Název nakladatele

Institute of Thermomechanics AS CR, v. v. i.

Místo vydání

Prague

Místo konání akce

on-line

Datum konání akce

17. 2. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000853393400018