Abstract An inverse design methodology on a waverider is proposed under strong geometric constraints on the basis of the generation method of an arbitrarily-shaped shock wave to obtain an improved performance. First, the generation method of the body contour that can form an arbitrarily-shaped shock wave is introduced in detail based on the method of characteristics. The effectiveness and accuracy of the generation method are verified through numerical simulation. Second, with the aid of the generation method, an inverse design method on waveriders under strong geometric constraints is presented. The waverider designed by the proposed method can satisfy the geometric constraints completely. Then, the influences of the shock wave shapes on the performance of the waveriders are studied through numerical simulation. In comparison with a traditional cone-derived waverider, the waverider based on the shock wave with convex quality can considerably increase the aerodynamic performance under the current geometric constraints. Conversely, the shock wave with concave quality deteriorates the aerodynamic performance of waveriders. The volumetric efficiency can also be improved with the adoption of the shock wave with concave quality. In conclusion, the numerical simulation result demonstrates that the proposed waverider design method can provide an increased flexibility and meet the different requirements of an actual design of hypersonic vehicles in geometric constraints and aerodynamic performances.

    Highlights A design method of waveriders under strong geometric constraints is proposed. The proposed design method is based on the generation of predefined shock waves. The generation method of the shock wave is based on MOC and is verified by CFD tools. The effectiveness and accuracy of the proposed method is verified by CFD tools. The predefined shock waves show great influence on the waverider performances.


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    Titel :

    Inverse design methodology of cone-derived waverider based on pre-defined shock wave under strong geometric constraints


    Beteiligte:
    Yu, Kaikai (Autor:in) / Xu, Jinglei (Autor:in) / Gong, Hao (Autor:in) / Li, Rui (Autor:in) / Liu, Shun (Autor:in)

    Erschienen in:

    Acta Astronautica ; 159 ; 527-539


    Erscheinungsdatum :

    2019-02-11


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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