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Non-harmonic excitation of synthetic jet actuators based on electrodynamic transducers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F18%3A00492687" target="_blank" >RIV/61388998:_____/18:00492687 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.ijheatfluidflow.2018.07.003" target="_blank" >http://dx.doi.org/10.1016/j.ijheatfluidflow.2018.07.003</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.ijheatfluidflow.2018.07.003" target="_blank" >10.1016/j.ijheatfluidflow.2018.07.003</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Non-harmonic excitation of synthetic jet actuators based on electrodynamic transducers

  • Original language description

    An axisymmetric synthetic jet actuator based on a loudspeaker was tested experimentally. The actuator was driven by a voltage waveform, whose shape was derived from a pulse-width modulated signal. With the duty cycle and frequency of the excitation voltage varied at a constant electrical input power level and fixed nozzle diameter, the momentum flux of the jet (the jet thrust) was measured using precision scales. The maximum of the measured momentum flux was found at the optimum driving frequency and the duty cycle. This experiment was repeated for several input power levels and nozzle diameters, and the resultant optimal driving configurations were compared with adequate results for a harmonically driven actuator with identical geometry. Based on a newly introduced dimensionless nozzle diameter, a criterion was found that states conditions under which it is advantageous to use the suggested non-harmonic excitation.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

    <a href="/en/project/GA16-16596S" target="_blank" >GA16-16596S: Optimization of pulsatile jet actuation in fluid mechanics</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    International Journal of Heat and Fluid Flow

  • ISSN

    0142-727X

  • e-ISSN

  • Volume of the periodical

    73

  • Issue of the periodical within the volume

    October

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    9

  • Pages from-to

    154-162

  • UT code for WoS article

    000452345000013

  • EID of the result in the Scopus database

    2-s2.0-85051661501