Verification tests of a new blade flutter research facility
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00559160" target="_blank" >RIV/61388998:_____/21:00559160 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24220/21:00009384
Result on the web
<a href="https://www.matec-conferences.org/articles/matecconf/pdf/2021/14/matecconf_pse2021_00020.pdf" target="_blank" >https://www.matec-conferences.org/articles/matecconf/pdf/2021/14/matecconf_pse2021_00020.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/matecconf/202134500020" target="_blank" >10.1051/matecconf/202134500020</a>
Alternative languages
Result language
angličtina
Original language name
Verification tests of a new blade flutter research facility
Original language description
Long term strategic changes in power generation approaches will require more flexibility for large power generating turbines as an unavoidable consequence of the increasing share of power generated by alternative energy sources. Demanded flexibility for the power turbine output will augment undesired flow phenomena in the low-pressure turbine module, which will consequently enhance blade flutter problems of long slender blades in turbine last stages. In order to advance the understanding of blade flutter onset conditions, the Institute of Thermomechanics of the Czech Academy of Sciences instigated an advanced research program on blade flutter research in high-speed turbomachines. A new innovative test facility for Blade Forced Flutter research was designed and built in the High-Speed Laboratory of the Institute of Thermomechanics. The concept of the new test facility is based on extensive experience with an older Transonic Flutter Cascade facility operated at the NASA Glenn Research Center in Cleveland, Ohio. At present, the first phase of verification tests of the new facility is in progress. The ongoing steady-state tests are intended for exploration of a newly proposed quasi-stationary method to investigate instigating flow conditions leading to an onset of intense blade flutter. Results of some opening tests under steady flow conditions are presented in the paper. The blade drive mechanism for unsteady tests with oscillating blades has not yet been installed in the facility. The presented paper is a work-in-progress report on the ongoing research of complex blade flutter problems.
Czech name
—
Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
<a href="/en/project/GA20-11537S" target="_blank" >GA20-11537S: Experimental research on flutter excitation function in turbomachinery</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
20th Conference cn Power System Engineering
ISBN
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ISSN
2261-236X
e-ISSN
2261-236X
Number of pages
10
Pages from-to
00020
Publisher name
EDP Sciences
Place of publication
Cedex A
Event location
Plzeň
Event date
Sep 7, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000748890700020