Optical Measurement and Visualization of Transonic Airflow in a Compressor Blade Cascade

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00565287" target="_blank" >RIV/61388998:_____/23:00565287 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/23:00010501

Výsledek na webu

<a href="https://link.springer.com/content/pdf/10.1007/s12650-022-00901-3.pdf?pdf=button" target="_blank" >https://link.springer.com/content/pdf/10.1007/s12650-022-00901-3.pdf?pdf=button</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12650-022-00901-3" target="_blank" >10.1007/s12650-022-00901-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical Measurement and Visualization of Transonic Airflow in a Compressor Blade Cascade

Popis výsledku v původním jazyce

The paper deals with optical measurements of transonic flow past a five-blade compressor blade cascade. The middle blade of this cascade can be set to different incidence angles simulating its torsional deformation. Classical optical methods (shadowgraphy, monochrome and color schlieren) were applied to visualize flow field in the inlet part of the cascade and compared to results obtained using a recent fiber-based spatial carrier digital interferometric setup. Measurements were done at inlet Mach number 1.09 and pressure ratio 1.32 with the middle blade set at 0∘ and 3∘ incidence offset. Results of individual techniques are analyzed and their utility is assessed. Shock wave configuration is best revealed by shadowgraphy, which is the least demanding method, whereas most information is provided by the digital interferometry. It is proved that the current interferometric setup is well applicable even when inexpensive acrylic glass optical windows are used. Thus, the method can be readily used for aerodynamic investigations where modifications of sidewalls are required.

Název v anglickém jazyce

Optical Measurement and Visualization of Transonic Airflow in a Compressor Blade Cascade

Popis výsledku anglicky

The paper deals with optical measurements of transonic flow past a five-blade compressor blade cascade. The middle blade of this cascade can be set to different incidence angles simulating its torsional deformation. Classical optical methods (shadowgraphy, monochrome and color schlieren) were applied to visualize flow field in the inlet part of the cascade and compared to results obtained using a recent fiber-based spatial carrier digital interferometric setup. Measurements were done at inlet Mach number 1.09 and pressure ratio 1.32 with the middle blade set at 0∘ and 3∘ incidence offset. Results of individual techniques are analyzed and their utility is assessed. Shock wave configuration is best revealed by shadowgraphy, which is the least demanding method, whereas most information is provided by the digital interferometry. It is proved that the current interferometric setup is well applicable even when inexpensive acrylic glass optical windows are used. Thus, the method can be readily used for aerodynamic investigations where modifications of sidewalls are required.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/LTAUSA19036" target="_blank" >LTAUSA19036: Pokročilý experimentální výzkum synchronního a nesynchronního kmitání lopatek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Visualization

ISSN

1343-8875

e-ISSN

1875-8975

Svazek periodika

26

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

21

Strana od-do

529-549

Kód UT WoS článku

000895565100001

EID výsledku v databázi Scopus

2-s2.0-85143695147