The dual-bell nozzle (DBN) is a rocket nozzle concept that could provide a substantial payload gain. The present paper focuses on the impact of radial secondary injection on DBN behavior during its ascent and descent in the atmosphere. The influence of the secondary injection settling chamber (cavity) volume is discussed. The positive influence of the cavity volume on the DBN behavior during transition phases has been exposed, and its effects during retransition were shown to be negligible. The use of secondary injection allowed the transition nozzle pressure ratio to be increased by nearly 24%, and the lateral forces were reduced to less than 1% of the nozzle thrust. A first approach regarding secondary injection optimization is finally proposed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Parametrical Investigation of Transverse Injection in a Dual-Bell Nozzle During Altitude-Varying Conditions


    Beteiligte:
    Legros, Brian (Autor:in) / Leger, Luc (Autor:in) / Kourta, Azeddine (Autor:in) / Chpoun, Amer (Autor:in) / Sellam, Mohamed (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2023-08-02


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Dual-bell altitude compensating nozzles

    Horn, M. / Fisher, S. | NTRS | 1993


    Dual-Bell Nozzle Design

    Génin, Chloé / Schneider, Dirk / Stark, Ralf | Springer Verlag | 2020

    Freier Zugriff

    Numerical Investigation of Dual Bell Nozzle Flow Field

    Genin, Chloe / Stark, Ralf / Karl, Sebastian et al. | AIAA | 2012


    The Dual-Bell (DB) Nozzle

    Tucker, Paul K. | NTRS | 2014