The development and formation of the leading-edge vortices due to the change in the angle of attack, α , and yaw angle, θ , for a unique cross-flow plane at a dimensionless distance of x / C = 0.8 from the apex of the stationary delta wing with a sweep angle of Λ = 40 ° were observed using stereoscopic particle-image velocimetry (stereo-PIV). In addition, the experiments were conducted on three different cross-flow planes such as x / C = 0.6 , 0.8 , and 1 using dye visualization to reveal the development of leading-edge vortices over the delta wing. The angle of attack was varied within the range of 7 α 17 ° and the yaw angle was varied within the range of 0 θ 8 ° . The vortical flow structure and loadings toward the wing surface due to the fluctuations and unsteadiness in the flow structure near the delta wing are investigated using time-averaged parameters such as streamlines, contours of vorticity distributions, Reynolds stress correlations, distributions of turbulent kinetic energy, vertical velocity, and RMS of vertical velocity fluctuations.


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    Titel :

    Observation of the Vortical Flow over a Yawed Delta Wing


    Beteiligte:
    Canpolat, C. (Autor:in) / Yayla, S. (Autor:in) / Sahin, B. (Autor:in) / Akilli, H. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2011-09-10


    Format / Umfang :

    142012-01-01 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch