An electrothermal ramjet configuration is examined as a possible alternative to rail guns and mass drivers for high acceleration launch missions. For a specific mission (earth escape) the idealized performance of the electrothermal ramjet, the electrothermal rocket and the electromagnetic acceleration system are compared. This comparison indicates that the gross performance of the ramjet compares favorably with that of the ideal electromagnetic acceleration system. A specific configuration for the ramjet is chosen and models for the dynamics, thermodynamics and fluid mechanics are presented. Results of calculations for a typical supersonic launch cycle suggest that pressure, temperature and power demand profiles associated with ramjet operation should be reasonable. A light gas gun is proposed to accelerate the vehicle to the critical velocity where efficient ramjet operation can begin. The theoretical performance of the ramjet is also shown to be substantially better than that of the light gas gun at high velocities.


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    Titel :

    The electrothermal ramjet


    Beteiligte:
    Wilbur, P. J. (Autor:in) / Mitchell, C. E. (Autor:in) / Shaw, B. D. (Autor:in)

    Kongress:

    Joint Propulsion Conference ; 1982 ; Cleveland, OH


    Erscheinungsdatum :

    01.06.1982


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    The electrothermal ramjet

    WILBUR, P. J. / MITCHELL, C. E. / SHAW, B. D. | AIAA | 1983


    The electrothermal ramjet

    WILBUR, P. / MITCHELL, C. / SHAW, B. | AIAA | 1982


    The electrothermal ramjet

    Wilbur, P. J. / Mitchell, C. E. / Shaw, B. D. | NTRS | 1983



    The annular flow electrothermal ramjet

    SHAW, B. / MITCHELL, C. / WILBUR, P. | AIAA | 1984