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Characterization of Supersonic Compressible Fluid Flow Using High-Speed Interferometry

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    SYSNO ASEP0549593
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleCharacterization of Supersonic Compressible Fluid Flow Using High-Speed Interferometry
    Author(s) Psota, P. (CZ)
    Cubreli, G. (CZ)
    Hála, Jindřich (UT-L) RID, ORCID
    Šimurda, David (UT-L) RID, ORCID
    Šidlof, P. (CZ)
    Kredba, J. (CZ)
    Stašík, M. (CZ)
    Lédl, V. (CZ)
    Jiránek, M. (CZ)
    Luxa, Martin (UT-L) RID, ORCID
    Lepičovský, Jan (UT-L) ORCID
    Article number8158
    Source TitleSensors. - : MDPI
    Roč. 21, č. 23 (2021)
    Number of pages14 s.
    Publication formOnline - E
    Languageeng - English
    CountryCH - Switzerland
    Keywordshigh-speed ; interferometry ; supersonic ; compressible flow ; wind tunnel
    Subject RIVBK - Fluid Dynamics
    OECD categoryApplied mechanics
    R&D ProjectsLTAUSA19036 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Method of publishingOpen access
    Institutional supportUT-L - RVO:61388998
    UT WOS000735134400001
    EID SCOPUS85120627902
    DOI10.3390/s21238158
    AnnotationThis paper presents a very effective interference technique for the sensing and researching of compressible fluid flow in a wind tunnel facility. The developed technique is very sensitive and accurate, yet easy to use under conditions typical for aerodynamic labs, and will be used for the nonintrusive investigation of flutter in blade cascades. The interferometer employs a high-speed camera, fiber optics, and available “of-the-shelf” optics and optomechanics. The construction of the interferometer together with the fiber optics ensures the high compactness and portability of the system. Moreover, single-shot quantitative data processing based on introducing a spatial carrier frequency and Fourier analysis allows for almost real-time quantitative processing. As a validation case, the interferometric system was successfully applied in the research of supersonic compressible fluid discharge from a narrow channel in a wind tunnel. Density distributions were quantitatively analyzed with the spatial resolution of about 50 μm. The results of the measurement revealed important features of the flow pattern. Moreover, the measurement results were compared with Computational Fluid Dynamics (CFD) simulations with a good agreement.
    WorkplaceInstitute of Thermomechanics
    ContactMarie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
    Year of Publishing2022
    Electronic addresshttps://www.mdpi.com/1424-8220/21/23/8158/htm
Number of the records: 1  

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