• Title of article

    Experimental and Numerical Investigation of the Effects of Passive Vortex Generators on Aludra UAV Performance

  • Author/Authors

    ZHEN، نويسنده , , Tan Kar and ZUBAIR، نويسنده , , Muhammed and AHMAD، نويسنده , , Kamarul Arifin، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2011
  • Pages
    7
  • From page
    577
  • To page
    583
  • Abstract
    A study of the effects of passive vortex generators (VGs) on Aludra unmanned aerial vehicle (UAV) aerodynamic characteristics is presented. Both experimental and numerical works are carried out where an array of VGs is attached on Aludra UAVʹs wing. The flow measurements are made at various angles of attack by using 3-axis component balance system. In the numerical investigation, the Reynolds-averaged Navier-Stokes (RANS) code FLUENT 6.3™ is used in the simulations with fully structured mesh with Spalart-Allmaras (S-A) turbulence model and standard wall function. The comparison between the experimental and numerical results reveals a satisfactory agreement. The parametric study shows that higher maximum lift coefficient is achieved when the VGs are placed nearer to the separation point. In addition to this, shorter spanwise distance between the VGs also increases the maximum lift coefficient, rectangular and curve-edge VG performs better than triangular VG.
  • Keywords
    passive VG , NACA4415 , Flow Control , Computational fluid dynamics , Skin friction coefficient , Lift coefficient
  • Journal title
    Chinese Journal of Aeronautics
  • Serial Year
    2011
  • Journal title
    Chinese Journal of Aeronautics
  • Record number

    2265057