Cold-flow tests, thermal tests, and numerical simulation were performed to study the thrust-adjustment characteristics, and the thrust-vector-control characteristics, of a fluidic nozzle throat combined with the method of shock vector control. The effective throat-area ratio, thrust-adjustment ratio of the fluidic nozzle throat, and the effect of gas and liquid medium on thrust-vector-control characteristics were investigated. The feasibility of a fluidic nozzle throat being applied to solid rocket motor was verified. Finally, the relationship between the effective throat-area ratio, the thrust-adjustment ratio, and the modified mass-flow-rate ratio has been obtained to provide accessibility for fluidic-nozzle-throat design. The combination of fluidic nozzle throat and shock vector control has been studied with a view to increasing the thrust-control effect. Results show that the effective throat-area ratio, thrust-vector angle, and adjustment ratio are associated with the injection angle, injector placement, and distribution of secondary flow, and increase with the modified mass-flow-rate ratio. By proper placement of secondary-flow injectors, the flow-interface loss can be effectively decreased to retain acceptable thrust-vector-control performance by the combination of fluidic nozzle throat and shock vector control.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Thrust Control by Fluidic Injection in Solid Rocket Motors


    Contributors:
    Guo, Changchao (author) / Wei, Zhijun (author) / Xie, Kan (author) / Wang, Ningfei (author)

    Published in:

    Publication date :

    2017-01-19


    Size :

    15 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Thrust Control by Fluidic Injection in Solid Rocket Motors

    Guo, Changchao | Online Contents | 2017


    Thrust Control by Fluidic Injection in Solid Rocket Motors

    Guo, Changchao | Online Contents | 2017


    Thrust Modulation Process of Fluidic Throat for Solid Rocket Motors

    Xie, Kan / Chen, Xinmin / Li, Junwei et al. | Springer Verlag | 2019


    Fluidic nozzle throats in solid rocket motors

    Xie, Kan / Chen, Xinmin / Li, Junwei et al. | TIBKAT | 2019


    Thrust Oscillations in Solid Rocket Motors

    Guery, J. / Godfroy, F. / Ballereau, S. et al. | AIAA | 2008