Supersonic Flutter Analysis Based on a Local Piston Theory

  title={Supersonic Flutter Analysis Based on a Local Piston Theory},
  author={Wei-Wei Zhang and Zheng-Yin Ye and Chunxin Zhang and Feng Liu},
A highly efficient local-piston theory is presented for the prediction of inviscid unsteady pressure loads at supersonic and hypersonic speeds. A steady mean flow solution is first obtained by an Euler method. The classical piston theory ismodified to apply locally at each point on the airfoil surface on top of the localmean flow to obtain the unsteadypressureperturbations causedby thedeviation of the airfoil surface from itsmean locationwithout the need of performing unsteady Euler… CONTINUE READING
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