An investigation into the feasibility of using a solid fuel, dual-combustion mode ramjet (DMRJ) in high Mach number vehicles (i.e., tactical missiles) was conducted to determine the regimes where this propulsion plant might be superior to a conventional solid fuel ramjet (SFRJ). The analysis showed that at Mach 6 and 80,000 feet, with a combustion efficiency of 90 percent, the DMRJ performance can exceed that of the SFRJ by as much as 20 percent at near stoichiometric overall fuel-to-air ratios, neglecting mixing losses in the supersonic combustor. It also appears that the combustion efficiency must be greater than 70 percent in order for the DMRJ to outperform the conventional SFRJ. Chemical kinetics considerations revealed that the dual-mode configuration enables the efficient use of solid hydrocarbon fuels due to the existence of highly reactive species in the supersonic chamber, after the completion of the initial slow reaction stages in the subsonic gas generator. Preliminary laboratory tests demonstrated the operation of such a DMRJ system, including the establishment of sustained combustion in the supersonic chamber.


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    Titel :

    Investigation of Solid-Fuel, Dual-Mode Combustion Ramjets


    Beteiligte:
    C. Vaught (Autor:in) / M. Witt (Autor:in) / D. Netzer (Autor:in) / A. Gany (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    17 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Investigation of solid-fuel, dual-mode combustion ramjets

    VAUGHT, C. / WITT, M. / NETZER, D. et al. | AIAA | 1992


    Combustion Behavior of Solid-Fuel Ramjets

    C.J. Mady / P.J. Hickey / D.W. Netzer | AIAA | 1978


    Combustion Investigation for Dual-Mode Ramjets for the LEA program

    Bouchez, M. / Dessornes, O. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2008


    Combustion related to solid-fuel ramjets

    RAGHUNANDAN, B. N. / MARATHE, A. G. / RAVICHANDRAN, E. R. | AIAA | 1985


    Scramjet and Dual Mode Ramjets

    Bouchez, M. / Falempin, F. / Advisory Group for Aerospace Research and Development | British Library Conference Proceedings | 1997