Space transportation vehicles have asymmetric protuberant devices on their surfaces, such as cable ducts. Such protuberances, typically arranged asymmetrically with respect to the vehicle axis, are known to cause asymmetric vortices and side force. In this study, to understand effects of side force and its associated flow fields, both wind-tunnel tests and numerical calculations for a slender body with an asymmetric protuberance were conducted at Mach 1.5. The results of computed aerodynamic coefficients are in good agreement with the experimental results and detailed flow structures are provided. In particular, the results revealed that side force was generated by two factors. It linearly increased as vortices detached from the body, and nonlinearly increased based on the effects of secondary vortex scale as the angle of attack increased. Additionally, the axial position and azimuthal angle (angle along the circumferential direction around the body axis) of the protuberance strongly influenced side force characteristics. First, the side force was significantly higher when the protuberance was installed in a forward axial position. Second, when the protuberance was installed on the leeward side of the slender body, the side force increased with the angle of attack. These results are not limited to the presented configuration but to other rocket designs.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental and Numerical Investigations of Slender Body Side Force with Asymmetric Protuberances


    Beteiligte:
    Kawauchi, K. (Autor:in) / Harada, T. (Autor:in) / Kitamura, K. (Autor:in) / Nonaka, S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2019-03-15


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Tomographic Reconstruction from Schlieren Images of Slender Body with Asymmetric Protuberances

    Akamine, Masahito / Yamauchi, Satoshi / Nonaka, Satoshi et al. | AIAA | 2020


    Side Force Characteristics of Slender-Bodied Supersonic Vehicle with Two Protuberances

    Tsutsui, Fumiya / Takagi, Yuya / Takimoto, Hiroyuki et al. | AIAA | 2022


    Vehicle differential housing with protuberances

    ECKART JOHN / GALL DAVID E / KAPLAN KEVIN J et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    NUMERICAL ANALYSIS ON AERODYNAMIC CHARACTERISTICS OF SLENDER BODY WITH ASYMMETRIC DOUBLE PROTUBERANCE

    Tsutsui, Fumiya / Takagi, Yuya / Takimoto, Hiroyuki et al. | TIBKAT | 2021


    Numerical Analysis on Aerodynamic Characteristics of Slender Body with Asymmetric Double Protuberance

    Tsutsui, Fumiya / Takagi, Yuya / Takimoto, Hiroyuki et al. | AIAA | 2021