The rocket-ejector mode of a Rocket Based Combined Cycle Engine (RBCC) was studied through a joint experimental/analytical approach. A two-dimensional variable geometry rocket-ejector system with enhanced optical access was designed and fabricated for experimentation. The rocket-ejector system utilizes a single two-dimensional gaseous oxygen/gaseous hydrogen rocket as the ejector. To gain a systematic 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 (gaseous oxygen, hydrogen. nitrogen and water vapor). These experimental efforts were complemented by Computational Fluid Dynamic (CFD) flowfield analyses.


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    Title :

    Focused Experimental and Analytical Studies of the RBCC Rocket-Ejector


    Contributors:
    M. Lehman (author) / S. Pal (author) / D. Schwes (author) / J. D. Chen (author) / R. J. Santoro (author)

    Publication date :

    1999


    Size :

    10 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Focused Experimental and Analytical Studies of the RBCC Rocket-Ejector

    Lehman, M. / Pal, S. / Schwes, D. et al. | NTRS | 1999


    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


    Focused Rocket-Ejector RBCC Experiments

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


    Focused Rocket-Ejector RBCC Experiments

    Santoro, Robert J. / Pal, Sibtosh | NTRS | 2003


    Experimental/Analytical Characterization of the RBCC Rocket-Ejector Mode

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