Dielectric barrier surface discharges (DBD) have the potential to act as flush mounted flow control devices for separation control and other aeronautic applications. A pulse-sustained plasma with the ions driven by a DC bias voltage is proposed for optimum performance. The work indicates that sustaining the plasma with repetitive high voltage nanosecond pulses and driving the ions with a bias leads to significantly improved performance of the flush mounted DBD surface control jet as compared to the conventional configuration driven with a sinusoidal high voltage. Ion charge build up on the dielectric surface inhibits the performance both for the conventional DBD configuration and for the pulse sustained concept. In order to suppress the charge build up, the authors show that either a reversing bias or a new electrode configuration can be used. The new electrode configuration exposes the lower electrode downstream of the dielectric coating, and thus provides a route for charge bleed off. Using this configuration, a DC bias can be applied leading to 100% duty cycle and high performance at low bias voltage. Scaling suggests that higher DC biases will lead to much improved performance compared to both the pulse sustained reversing bias configuration and the conventional sinusoidal configuration.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Non-thermal atmospheric pressure plasmas for aeronautic applications


    Weitere Titelangaben:

    Nicht-thermische Plasmen bei atmosphärischem Druck für aeronautische Anwendungen


    Beteiligte:


    Erscheinungsdatum :

    2008


    Format / Umfang :

    7 Seiten, 10 Bilder, 11 Quellen


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




    Structural Batteries for Aeronautic Applications

    Kühnelt, Helmut / Beutl, Alexander / Jiang, Qixiang et al. | Springer Verlag | 2025

    Freier Zugriff

    Aeronautic proposals

    Engineering Index Backfile | 1928


    AERONAUTIC CRAFT

    PERFILOV ALEKSANDR ALEKSANDROVICH | Europäisches Patentamt | 2018

    Freier Zugriff


    AERONAUTIC CRAFT

    SHCHEPOCHKINA YULIYA ALEKSEEVNA | Europäisches Patentamt | 2018

    Freier Zugriff