An unsteady finite volume procedure has been developed to predict the history of pressure, temperature and mass flow rate of the pressurant and propellant during the expulsion of the propellant from a tank. The time dependent mass, momentum and energy conservation equations are solved at the ullage space. The model accounts for the change in the ullage volume due to expulsion of the propellant. It also accounts for the heat transfer from the tank wall and propellant to the ullage gas. The procedure was incorporated in the Generalized Fluid System Simulation Program (GFSSP). The results of several test cases were then compared with a published correlation of pressurant requirements for a given displacement of propellant. The agreement between the predictions and the correlation was found to be satisfactory.


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    Titel :

    Numerical Modeling of Pressurization of a Propellant Tank


    Beteiligte:
    Majumdar, Alok (Autor:in) / Steadman, Todd (Autor:in)

    Kongress:

    Aerospace Sciences ; 1999 ; Reno, NV, United States


    Erscheinungsdatum :

    01.01.1998


    Medientyp :

    Preprint


    Format :

    Keine Angabe


    Sprache :

    Englisch




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