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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

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • 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