• Title/Summary/Keyword: 공탄성적 거동

Search Result 1, Processing Time 0.018 seconds

Study on Flexible Airfoil in Low Reynolds Number Flow Field (저 레이놀즈 수 유동장에서의 유연 익형에 대한 연구)

  • Gwon, Gi Beom
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.31 no.3
    • /
    • pp.1-7
    • /
    • 2003
  • In the study, aeroelastic behaviors and aerodynamic performances of flexible airfoil in low Reynolds number environment are evaluated. To facilitate the present study, flexible airfoil in modeled through attaching massless membrane in portion of the upper CLARK-Y airfoil surface, which is often proposed low Reynolds number airfoil. The behavior of membrane in governed by aerodynamic forces and membrane equilibrium equation. Nondimensional parameter deducted by nondimensionalizing the membrane equilibrium equation, which represents the interaction between fluid and membrane has a great influence on membrane aeroelastic behavior. Changing the starting point of the membrane is conducted on aerodynamic performances. As a result, the value of nondimensional parameter should almost linearly increase according to moving the starting point of the membrane surface toward the trailing edge.