Efficient prediction of classical flutter stability of turbomachinery blade using the boundary element type numerical method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F20%3A00524925" target="_blank" >RIV/61388998:_____/20:00524925 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955799720300199?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955799720300199?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enganabound.2020.01.013" target="_blank" >10.1016/j.enganabound.2020.01.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficient prediction of classical flutter stability of turbomachinery blade using the boundary element type numerical method

Popis výsledku v původním jazyce

In this paper classical flutter phenomena in power turbine rotor is studied. A medium fidelity 2D flow solver based on boundary element method is developed for this purpose. The classical flutter parameters in turbomachinery cascades such as aerodynamic damping at different inter-blade phase angleare estimated using flutter stability analysis flow solver. The flow solver isdeveloped using 2D unsteady potential ow based panel method. The unsteadyaerodynamic loading on the vibrating cascade is estimated using a traveling-wave mode oscillation. The simulated aerodynamic damping and pressure coeficient using boundary element method are compared against both experimental data and the computational uid dynamics model's resultsat difeerent ow conditions. The boundary element based method results demonstrate good agreement with experimental data. The boundaryelement based flow solver shows significant reduction in computational time compared to computational fluid dynamics model.

Název v anglickém jazyce

Efficient prediction of classical flutter stability of turbomachinery blade using the boundary element type numerical method

Popis výsledku anglicky

In this paper classical flutter phenomena in power turbine rotor is studied. A medium fidelity 2D flow solver based on boundary element method is developed for this purpose. The classical flutter parameters in turbomachinery cascades such as aerodynamic damping at different inter-blade phase angleare estimated using flutter stability analysis flow solver. The flow solver isdeveloped using 2D unsteady potential ow based panel method. The unsteadyaerodynamic loading on the vibrating cascade is estimated using a traveling-wave mode oscillation. The simulated aerodynamic damping and pressure coeficient using boundary element method are compared against both experimental data and the computational uid dynamics model's resultsat difeerent ow conditions. The boundary element based method results demonstrate good agreement with experimental data. The boundaryelement based flow solver shows significant reduction in computational time compared to computational fluid dynamics model.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Engineering Analysis With Boundary Elements

ISSN

0955-7997

e-ISSN

—

Svazek periodika

113

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

328-345

Kód UT WoS článku

000518874200027

EID výsledku v databázi Scopus

2-s2.0-85079042759