Abstract This paper studies the mechanism of combinational active thermal protection system (CA-TPS) of the hypersonic vehicles by numerical method. Unlike the traditional configuration, the nozzle is fixed on the spike, and the directions of lateral jet and hypersonic free stream are perpendicular to each other. The CA-TPS has significantly weaker reattachment shock wave than traditional spiked blunt body. Furthermore, the low temperature gas ejected from the nozzle flows downstream to reduce the aeroheating directly. For the blunt body, the peak and total heat fluxes of CA-TPS are 37.34% and 23.97% lower than that of traditional spiked blunt body, respectively. In addition, this paper conducts the analysis of influencing factors of the CA-TPS. As the total-pressure-ratio of nozzle and the length of spike increase, the reattachment shock wave intensity gradually weakens, and more low temperature gas can be ejected to increase the thermal protection efficiency of the CA-TPS. As the nozzle moves downstream, the reattachment shock wave intensity gradually increases, thus reducing the thermal protection efficiency. The effects of the above influencing factors on the flow field and change rate of thermal protection efficiency of CA-TPS are also studied in this paper.

    Highlights The numerical calculation is conducted to study mechanism of CA-TPS. Excellent thermal protection performance of CA-TPS is verified. Effect of total pressure of nozzle is analyzed. Effect of length of spike is analyzed. Effect of position of nozzle is analyzed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Active flow control by a novel combinational active thermal protection for hypersonic vehicles


    Contributors:
    Huang, Jie (author) / Yao, Wei-Xing (author)

    Published in:

    Acta Astronautica ; 170 ; 320-330


    Publication date :

    2020-01-24


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Active thermal control for hypersonic vehicles

    Krause, J.M. / Hartmann, G.L. / Ianculescu, G.D. | Tema Archive | 1990


    Active thermal control for hypersonic vehicles

    HARTMANN, GARY / KRAUSE, JAMES / IANCULESCU, GEORGE | AIAA | 1990


    Research progress on active thermal protection for hypersonic vehicles

    Zhang, Silong / Li, Xin / Zuo, Jingying et al. | Elsevier | 2020


    Adjustable active thermal protection system for hypersonic aircraft

    HUANG JIE / GAO DAIYANG / YAO WEIXING et al. | European Patent Office | 2021

    Free access

    Active thermal protection system for hypersonic aircraft nose cone

    HUANG JIE / GAO DAIYANG / YAO WEIXING et al. | European Patent Office | 2020

    Free access