The use of premixed, shock-induced combustion in the context of a hypervelocity, airbreathing vehicle requires effective injection and mixing of hydrogen fuel and air on the vehicle forebody. Three dimensional computational simulations of fuel injection and mixing from flush-wall and modified ramp and strut injectors are reported in this study. A well-established code, VULCAN, is used to conduct nonreacting, viscous, turbulent simulations on a flat plate at conditions relevant to a Mach 12 flight vehicle forebody. In comparing results of various fuel injection strategies, it is found that strut injection provides the greatest balance of performance between mixing efficiency and stream thrust potential.


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    Title :

    Study of Forebody Injection and Mixing with Application to Hypervelocity Airbreathing Propulsion


    Contributors:
    E. Axdahl (author) / A. Kumar (author) / A. Wilhite (author)

    Publication date :

    2012


    Size :

    24 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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