Reynolds-averaged Navier–Stokes simulations with submodels of turbulence, chemistry, fluid–surface interaction, and radiation are performed in this work to rebuild the internal ballistics of an experimentally tested hybrid rocket engine with paraffin and gaseous oxygen as propellants. Firstly, the effects of the prechamber and postchamber cavities at the initial, average, and final diameter of a reference burn are assessed to be negligible. Then, numerical simulations modeling the fuel shape change in space and time are compared to simulations performed at uniform port radius. The latter provide reasonable regression rate, pressure, and final grain profile predictions with reduced computational cost. On the other hand, the more computationally expensive fuel shape change simulations improve the model prediction capabilities providing a more accurate comparison with experimental data. The fuel shape change approach is finally applied with success to simulations of a throttled burn.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical Simulations of Fuel Shape Change in Paraffin–Oxygen Hybrid Rocket Engines



    Published in:

    Publication date :

    2023-11-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Numerical Simulations of Fuel Shape Change in Paraffin-Oxygen Hybrid Rocket Engines

    Migliorino, Mario Tindaro / Gubernari, Giorgio / Bianchi, Daniele et al. | AIAA | 2022


    Numerical Simulations of Fuel Shape Change and Swirling Flows in Paraffin/Oxygen Hybrid Rocket Engines

    Fabiani, Marco / Gubernari, Giorgio / Migliorino, Mario Tindaro et al. | Springer Verlag | 2023

    Free access

    Numerical Analysis of Paraffin-Wax/Oxygen Hybrid Rocket Engines

    Migliorino, Mario Tindaro / Bianchi, Daniele / Nasuti, Francesco | AIAA | 2020


    Tests and simulations on 200N paraffin-oxygen hybrid rocket engines with different fuel grain lengths

    Mungiguerra, Stefano / Cardillo, Daniele / Gallo, Giuseppe et al. | TIBKAT | 2023

    Free access

    Nitrous Oxide/Paraffin Hybrid Rocket Engines

    Zubrin, Robert / Snyder, Gary | NTRS | 2010