The startup of in-orbit rocket engines using cryogenic propellants is characterized by near-vacuum conditions leading to rapid flash evaporation of liquid oxidizer or fuel before ignition. The evolution of a flashing oxygen spray as well as the interaction with a coaxial gaseous methane injection is studied and compared to experiments using numerical methods. A flash evaporation model for superheated cryogenic droplets using an Euler–Lagrange method is implemented into a computational fluid dynamics solver. A simplified droplet flash evaporation model is used to calculate the coupling between Eulerian and Lagrangian phases with their respective source terms.


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    Title :

    Simulations of Injection of Liquid Oxygen/Gaseous Methane Under Flashing Conditions


    Contributors:

    Published in:

    Publication date :

    2018-03-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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