This paper presents research on torpedo-like vehicles cruising underwater at very high speeds with water-augmented metallized hybrid propellant ram rocket motors (water-breathing ramjets), exhibiting superior energetic performance and thrust to that of conventional underwater rocket propulsion systems. Metal additives (aluminum and magnesium) within a polymeric fuel react with the ingested water, substantially increasing the specific impulse beyond that of non-hydroreactive fuels. A parametric investigation on firing tests of a submerged ram rocket vehicle during motion revealed the effect of additive type and contents (up to 40% mass fraction), oxidizer-to-fuel ratio, water-to-propellant ratio, and cruise speed on the standard specific impulse. Results demonstrated a specific impulse augmentation to 430 s, representing an improvement of up to 70% compared to conventional rocket propulsion systems and a 13% increase compared to fuels with non-hydroreactive ingredients, showing good correspondence to previous static firing data.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Performance of Water-Augmented Metallized Hybrid Propellant Ram Rocket During Underwater Motion


    Beteiligte:
    Dinisman, Sagi (Autor:in) / Eisen, Nachum E. (Autor:in) / Gany, Alon (Autor:in)


    Erscheinungsdatum :

    01.03.2025




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Theoretical Performance of Water-Augmented Underwater Rocket

    Eisen, Nachum / Gany, Alon | British Library Conference Proceedings | 2019


    Air-Augmented Rocket Propellant Screening Facility

    C. H. Hitchcock / T. K. Henry / E. J. Soterpoulos | NTIS | 1971



    Investigation on Tri-propellant Hybrid Rocket Performance

    Chen, Yen-Sen / Lai, Alfred / Lin, Jhe-Wei et al. | AIAA | 2016


    Experimental investigation of a metallized cryogenic hybrid rocket engine

    Gramer, Daniel / Knuth, William / Rice, Eric et al. | AIAA | 1998