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Energetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers

  1. 1.
    SYSNO ASEP0451240
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleEnergetic efficiencies of synthetic and hybrid synthetic jet actuators driven by electrodynamic transducers
    Author(s) Kordík, Jozef (UT-L) RID
    Trávníček, Zdeněk (UT-L) RID, ORCID
    Pavelka, Miroslav (UT-L)
    Number of authors3
    Source TitleExperimental Thermal and Fluid Science. - : Elsevier - ISSN 0894-1777
    Roč. 69, December (2015), s. 119-126
    Number of pages8 s.
    Publication formPrint - P
    Languageeng - English
    CountryUS - United States
    Keywordssynthetic jet ; hybrid synthetic jet ; energetic efficiency
    Subject RIVBK - Fluid Dynamics
    R&D ProjectsGA14-08888S GA ČR - Czech Science Foundation (CSF)
    Institutional supportUT-L - RVO:61388998
    UT WOS000362859200012
    EID SCOPUS84940105505
    DOI10.1016/j.expthermflusci.2015.08.005
    AnnotationThe paper investigates synthetic and hybrid synthetic jet actuators that are based on similar geometries. The actuators are supplied by a harmonic power input and are operated close to the first resonance frequency. An energetic efficiency is applied. The maximal outlet characteristic velocities and efficiencies of both actuators are studied as functions of the input real power. Theoretical approximations of these functions were derived for the synthetic jet actuator and successfully compared with experimental hot-wire results. The paper demonstrates a usefulness of the applied definition of the energetic efficiency. Moreover, the advantages of the hybrid synthetic jet actuator were quantified. The hybrid synthetic jet actuator achieves a 15-23% increase in the velocities and a 41-48% increase in the energetic efficiency, both in comparison with the ordinary synthetic jet actuator working at the same input real power.
    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 Publishing2016
Number of the records: 1  

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