Results from two unsteady, turbulent flow computations using a hybrid Reynolds-averaged Navier–Stokes/large-eddy-simulation turbulence model are presented. One computation deals with flow in a complex rocket-engine cooling manifold and the other with a simpler T-junction flow. Results from the T-junction flow computations show that, for a for a critical flow velocity in the side branches, an acoustic resonance is excited. The reduced velocity at resonance was found to be in the range 1.5 to 1.7, which is in good agreement with experimental measurements. In addition, the pressure profile exhibits a node on the axis of the T junction with antinodes of opposite signs in the side branches. For the rocket-engine cooling manifold, results show that vortex shedding and pressure fluctuations within the manifold significantly influence the stability of shear layers and flow through exit cooling tubes. In some cooling tubes near the inflow region, the shear layer blocks the entrance to the tubes, whereas in some other regions, flow reversal is observed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Toward the Understanding of Flow-Induced Vibrations in a Rocket-Engine Manifold


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.11.2013




    Medientyp :

    Aufsatz (Konferenz) , Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Flow Induced Vibrations in a Rocket Engine Manifold

    Peugeot, John / Frendi, Abdelkader | AIAA | 2012


    Toward variable-thrust liquid-rocket engine

    Welton, D.E. / Bensky, S.M. / Hiland, J.R. | Engineering Index Backfile | 1963


    Rocket engine with integrated oxidizer catalyst in manifold and injector assembly

    ELZEIN BACHAR / GOULET-BOURDON MAXIME / GAGNON MIGUEL | Europäisches Patentamt | 2024

    Freier Zugriff

    Dynamic Response of a Dual-Manifold Injector Rocket Engine to Throttling

    Cheng, Peng / Li, Qinglian / Wu, Jiping et al. | AIAA | 2018