This paper demonstrates the closed-loop control of the frequency and phase of a fluidic oscillator using acoustic excitation. It is shown experimentally that the use of acoustic excitation modifies the passive feedback mechanism and slows down the jet switching process. Closed-loop control is employed to vary the oscillation frequency at a fixed flow rate and track a sinusoidal reference target without phase error, using measurements from a pitot probe in the device. The controller is demonstrated to be effective at rejecting disturbances, which is illustrated with both time and frequency domain data. The controller’s ability to track step changes to the reference signal phase is tested, and the closed-loop bandwidth is shown to be around 20% of the oscillation frequency, in close agreement with the theoretical prediction.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fluidic Oscillator with Active Phase Control


    Beteiligte:
    Nicholls, Chris J. (Autor:in) / Bacic, Marko (Autor:in)

    Erschienen in:

    AIAA Journal ; 61 , 5 ; 1973-1985


    Erscheinungsdatum :

    2023-02-27


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Fluidic oscillator with active phase control

    Nicholls, Chris / Bacic, Marko | AIAA | 2022


    Phase-Synchronized Fluidic Oscillator Pair

    Tomac, Mehmet N. / Gregory, James W. | AIAA | 2018


    Phase-Synchronized Fluidic Oscillator Pair

    Tomac, Mehmet N. / Gregory, James W. | AIAA | 2017


    FLUIDIC OSCILLATOR DEVICE

    BAUER KARIN / BLECHSCHMIDT MARKUS / SCHWARZ SEBASTIAN et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    Fluidic-oscillator gas analyzer

    Faber, E. A. | NTRS | 1978