In this study, to reduce oxidizer to fuel ratio (O/F) shifts, which are a serious problem for a hybrid rocket used for launching a satellite, an altering-intensity swirling-flow-type hybrid rocket was developed. It can alter the swirl intensity instantaneously during operation by controlling the ratio of the swirling oxidizer flow rate to the axial oxidizer flow rate using ball valves. Eight firing tests were conducted to obtain the relation among oxidizer mass flux, swirl intensity, and regression rate. Then the time scheduling of the valve open ratio was determined to eliminate O/F shift. Finally, a firing test was conducted using this system. From the results, the O/F shift was reduced from 2 to 1, i.e., halved.


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    Title :

    Demonstration of an Altering-Intensity Swirling-Oxidizer-Flow-Type Hybrid Rocket Function


    Contributors:

    Published in:

    Publication date :

    2020-10-23


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English