Systematic asymptotic methods are used to formulate a mathematical model for the response of an inert gas to time-resolved, spatially distributed, thermal energy addition. A primary objective is to identify how thermal energy is converted to kinetic energy to predict the distribution of induced fluid motion and the presence of mechanical disturbances. The gas response to heating is found to depend on two independent parameters, one related to the amount of energy deposited into the volume relative to the initial internal energy present there and the other related to the deposition time scale relative to the characteristic acoustic time in the volume. Results are given for relatively fast (slow), high (low) intensity energy deposition into a wide range of volumes to quantify conditions leading to either near constant volume heating or those leading to near constant pressure processes. In each case, the local expansion Mach number is the fundamental source of mechanical disturbances, via the “piston effect.”


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Mechanical Disturbances Arising from Thermal Power Deposition in a Gas


    Beteiligte:
    Kassoy, D. R. (Autor:in)

    Erschienen in:

    AIAA Journal ; 52 , 10 ; 2328-2335


    Erscheinungsdatum :

    2014-04-21


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






    Mechanical Disturbances Arising From Thermal Power Deposition in a Gas with Application to Supercritical Liquid Rocket Engine Combustion Instability

    Kassoy, D. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013


    Simulating AC Power Disturbances

    Van Eijkelenbug, H. / Instrument Society of America; Aerospace Industries Division / Instrument Society of America: Test Measurement Division | British Library Conference Proceedings | 1996