Experimental and complementary CFD results from the study of the rocket-ejector mode of a Rocket Based Combined Cycle (RBCC) engine are presented and discussed. The experiments involved systematic flowfield measurements in a two-dimensional, variable geometry rocket-ejector system. The rocket-ejector system utilizes a single two-dimensional, gaseous oxygen/gaseous hydrogen rocket as the ejector. To gain a thorough understanding of the rocket-ejector's internal fluid mechanic/combustion phenomena, experiments were conducted with both direct-connect and sea-level static configurations for a range of rocket operating conditions. Overall system performance was obtained through global measurements of wall static pressure profiles, heat flux profiles and engine thrust, whereas detailed mixing and combustion information was obtained through Raman spectroscopy measurements of major species (oxygen, hydrogen, nitrogen and water vapor). The experimental results for both the direct-connect and sea-level static configurations are compared with CFD predictions of the flowfield.


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    Title :

    Experiment/Analytical Characterization of the RBCC Rocket-Ejector Mode


    Contributors:
    Ruf, J. H. (author) / Lehman, M. (author) / Pal, S. (author) / Santoro, R. J. (author) / West, J. (author) / Turner, James E. (author)

    Conference:

    JANNAF - Interagency Propulsion Committee Joint Meeting ; 2000 ; Monterey, CA, United States


    Publication date :

    2000-01-01


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English




    Experiment/Analytical Characterization of the RBCC Rocket-Ejector Mode

    J. H. Ruf / M. Lehman / S. Pal et al. | NTIS | 2000


    Experimental/Analytical Characterization of the RBCC Rocket-Ejector Mode

    Ruf, J. H. / Lehman, M. / Pal, S. et al. | NTRS | 2000


    Focused Experimental and Analytical Studies of the RBCC Rocket-Ejector Mode

    Lehman, M. K. / Pal, S. / Schwer, D. A. et al. | British Library Conference Proceedings | 1999


    Experimental Investigation of the RBCC Rocket-Ejector Mode

    Lehman, M. / Pal, S. / Santoro, R. J. et al. | British Library Conference Proceedings | 2000


    Focused Rocket-Ejector RBCC Experiments

    R. J. Santoro / S. Pal | NTIS | 2003