NASA has been conducting research in Rotating Detonation Rocket Engines (RDREs) for several years. A recent test at the Marshall Spaceflight Center has successfully shown operation of a RDRE that ran for 251 seconds which had combustion chamber cryogenic inlet conditions [1]. However, an overall pressure gain was not observed in the performance of the engine. Such an indication could mean an optimal chamber design is yet to be discovered. Such a design could significantly reduce parasitic pressure loses and improve overall engine efficiency beyond that of conventional rockets. To investigate different chamber configurations, new CFD capability is needed to accurately capture cryogenic thermophysical and transport property data. Such an effort is currently part of NASA’s Early Career Initiative (ECI) program. This paper focuses on the thermophysical property mixture model approach that makes use of NASA’s polynomial fits of species and another cryogenic model chosen from NIST’s Refprop program. Presented in this paper are results of a 1D denotation CFD simulation of stoichiometric Hydrogen and Oxygen mixture at a cryogenic upstream condition.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Cryogenic Extension of NASA Species Polynomials Using Hydrogen and Oxygen at Stoichiometry


    Beteiligte:
    R. P. Thacker (Autor:in) / Z. Harris (Autor:in) / B. Maxwell (Autor:in)

    Erscheinungsdatum :

    2024


    Format / Umfang :

    9 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






    Cryogenic, Multiphase, Hydrogen-Oxygen Detonations

    Coy, E. B. / Watts, J. M. / Palaniswamy, S. et al. | British Library Conference Proceedings | 2005



    Cryogenic, Multiphase, Hydrogen-Oxygen Detonations

    Coy, Edward / Watts, Jonathan / Palaniswamy, Sampath | AIAA | 2005