A detailed examination of the interaction of a generic fin with both a symmetric and an asymmetric pair of vortices in the leeside wake of a missile model has provided information on the effect of the interaction on the fin, as well as information on the effect of the fin position on the vortex system. A flow visualization study was performed, and the formation and growth of the nose-tip vortices, the trajectories of these vortices, and the structures of these vortices at the fin section during the interaction were documented. At alpha = 30 deg, the vortices developed symmetrically and remained symmetric throughout the interaction with the fin at all four axial fin locations. At the fin section, the structures and trajectories of the vortices were affected at different azimuthal fin positions. No upstream influence of the axial or azimuthal fin positions was seen. However, although the axial position of the fin did not affect the upstream development of the vortices, it did affect the location at which the vortices separate from the body. In contrast, at alpha = 45 deg of angle, the flowfield was significantly different for each axial fin location. At the first axial fin location, the vortices developed symmetrically, whereas at the other three axial fin locations, the vortices developed asymmetrically, showing their influence on the flowfield. At the two axial fin locations closest to the nose, an upstream influence of the azimuthal position on the vortex structures were observed. No vortex breakdown was observed. The flow visualization, coupled with pressure and force data, gave informations of the vortex-induced effects on the fin loading, the interaction range, and the effects of axial fin position. The present results are valuable. Experiments with slender bodies at higher Reynolds numbers show similar behaviour of the flowfield, including the development of an asymmetric vortex system. In addition, the detailed data are very valuable in the validation and verification of different computational modeling techniques. The results of this study can be used in missile design and to determine optimal fin placement on the missile. The estimated force data show the fin efficiency for different axial and azimuthal fin positions.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Interaction of missile nose-tip vortices with a control surface


    Additional title:

    Wechselwirkungen der von der Nasenspitze von Lenkflugkörpern ausgehenden Wirbel mit einer Lenkflosse


    Contributors:

    Published in:

    AIAA Journal ; 34 , 5 ; 999-1006


    Publication date :

    1996


    Size :

    8 Seiten, 8 Bilder, 6 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Interaction of missile nose-tip vortices with a control surface

    Kiedaisch, John W. / Acharya, Mukund | AIAA | 1996


    Interaction of missile tip vortices with a control surface

    Kiedaisch, John / Acharya, Mukund | AIAA | 1994


    Interaction of Missile Tip Vortices with a Control Surface

    Kiedaisch, J. W. / Acharya, M. / AIAA | British Library Conference Proceedings | 1994


    MISSILE NOSE CONE

    TRUSHLJAKOV VALERIJ IVANOVICH / SHATROV JAKOV TIMOFEEVICH / LEMPERT DAVID BORISOVICH et al. | European Patent Office | 2016

    Free access