CFD prediction of flutter of turbine blades and comparison with an experimental test case

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F18%3A43954522" target="_blank" >RIV/49777513:23210/18:43954522 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.matec-conferences.org/articles/matecconf/abs/2018/27/matecconf_xxi.aeanmifmae-2018_02005/matecconf_xxi.aeanmifmae-2018_02005.html" target="_blank" >https://www.matec-conferences.org/articles/matecconf/abs/2018/27/matecconf_xxi.aeanmifmae-2018_02005/matecconf_xxi.aeanmifmae-2018_02005.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/matecconf/201816802005" target="_blank" >10.1051/matecconf/201816802005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CFD prediction of flutter of turbine blades and comparison with an experimental test case

Popis výsledku v původním jazyce

Last stage blades are a key element of steam turbines and in many ways determine the turbine configuration alongside with the overall turbine performance. The total efficiency of the low pressure turbine section can be increased by extending the last stage blades. The design process of such long blades involves a flutter analysis using CFD tools which have to be validated by measurements in test facilities under various operating conditions. Experimental data obtained from a subsonic wind tunnel with an oscillating turbine blade cascade, which is available at the Department of Power System Engineering at the University of West Bohemia, was compared with simulations in ANSYS CFX currently used in the Doosan Skoda Power. The paper provides a brief summary of experimental rig description, CFD tool setup and the results for the case of a travelling wave mode with the pure torsion motion of amplitude of 0.5 degrees, Ma = 0.2, reduced frequency of 0.38 and angle of attack +5 degrees.

Název v anglickém jazyce

CFD prediction of flutter of turbine blades and comparison with an experimental test case

Popis výsledku anglicky

Last stage blades are a key element of steam turbines and in many ways determine the turbine configuration alongside with the overall turbine performance. The total efficiency of the low pressure turbine section can be increased by extending the last stage blades. The design process of such long blades involves a flutter analysis using CFD tools which have to be validated by measurements in test facilities under various operating conditions. Experimental data obtained from a subsonic wind tunnel with an oscillating turbine blade cascade, which is available at the Department of Power System Engineering at the University of West Bohemia, was compared with simulations in ANSYS CFX currently used in the Doosan Skoda Power. The paper provides a brief summary of experimental rig description, CFD tool setup and the results for the case of a travelling wave mode with the pure torsion motion of amplitude of 0.5 degrees, Ma = 0.2, reduced frequency of 0.38 and angle of attack +5 degrees.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

XXI INTERNATIONAL SCIENTIFIC CONFERENCE - THE APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGY 2018 (AEANMIFMAE-2018)

ISBN

—

ISSN

2261-236X

e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

02005, 1-8

Název nakladatele

E D P SCIENCES

Místo vydání

CEDEX

Místo konání akce

Rajecke Teplice, SLOVAKIA

Datum konání akce

25. 4. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000454319000008