A common propellant combination used for high thrust generation is GH2/LOX. Historical GH2/LOX injection elements have been of the shear-coaxial type. Element type has a large heritage of research work to aid in element design. The swirl-coaxial element, despite its many performance benefits, has a relatively small amount of historical, LRE-oriented work to draw from. Design features of interest are grounded in the fluid mechanics of the liquid swirl process itself, are based on data from low-pressure, low mass flow rate experiments. There is a need to investigate how high ambient pressures and mass flow rates influence internal and external swirl features. The objective of this research is to determine influence of varying liquid mass flow rate and ambient chamber pressure on the intact-length fluid mechanics of a liquid swirl element.


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    Title :

    Effect of Chamber Backpressure on Swirl Injector Fluid Mechanics


    Contributors:

    Conference:

    44th AIAA Joint Propulsion Conference ; 2008 ; Hartford, CT, United States


    Publication date :

    2008-07-21


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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