PIV measurement of wakes past stator wheel inside air test turbine VT-400 in two axial×tangential planes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F24%3A43971998" target="_blank" >RIV/49777513:23210/24:43971998 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23420/24:43971998

Výsledek na webu

<a href="https://www.engmech.cz/im/proceedings/show_p/2024/90" target="_blank" >https://www.engmech.cz/im/proceedings/show_p/2024/90</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21495/em2024-090" target="_blank" >10.21495/em2024-090</a>

Jazyk výsledku

angličtina

Název v původním jazyce

PIV measurement of wakes past stator wheel inside air test turbine VT-400 in two axial×tangential planes

Popis výsledku v původním jazyce

VT-400 is a single-stage test turbine working with ambient air located at the University of West Bohemia in Pilsen. Inside this turbine, we perform a PIV (Particle Image Velocimetry) measurement of the flow field in two planes oriented in axial × tangential direction. There planes are located between the stator wheel and rotor wheel; first one is near the hub, second one at the middle of blade height. The spatial distribution of velocity fluctuations displays system of wakes and jets oriented diagonally over the studied area. The jets are represented by higher mean velocity and lower turbulence, the wakes oppositely. The spatial size of fluctuations is analyzed in terms of autocorrelation function: the size of correlated region is comparable with the wake width, additionally, there is apparent a wave in the stream-wise direction. At different turbine working parameters, we observed at least two distinct wavelengths. The neighboring wakes do not interact in the limits of studied areas.

Název v anglickém jazyce

PIV measurement of wakes past stator wheel inside air test turbine VT-400 in two axial×tangential planes

Popis výsledku anglicky

VT-400 is a single-stage test turbine working with ambient air located at the University of West Bohemia in Pilsen. Inside this turbine, we perform a PIV (Particle Image Velocimetry) measurement of the flow field in two planes oriented in axial × tangential direction. There planes are located between the stator wheel and rotor wheel; first one is near the hub, second one at the middle of blade height. The spatial distribution of velocity fluctuations displays system of wakes and jets oriented diagonally over the studied area. The jets are represented by higher mean velocity and lower turbulence, the wakes oppositely. The spatial size of fluctuations is analyzed in terms of autocorrelation function: the size of correlated region is comparable with the wake width, additionally, there is apparent a wave in the stream-wise direction. At different turbine working parameters, we observed at least two distinct wavelengths. The neighboring wakes do not interact in the limits of studied areas.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

ENGINEERING MECHANICS 2024

ISBN

978-80-214-6235-9

ISSN

1805-8248

e-ISSN

1805-8256

Počet stran výsledku

4

Strana od-do

90-93

Název nakladatele

Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics

Místo vydání

Brno

Místo konání akce

Milovy

Datum konání akce

14. 5. 2024

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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