Research on Aerodynamic Performance of Ram-air Parafoil's Trailing Edge Deflection

According to the requirement on load and glide slope of parafoil in practical engineering, the parameters of aspect ratio, span and anti-arcangle are computed and designed based on the known two-dimensional airfoil cross-section of parafoil. Firstly, with finite volume method to solve the Navier-Stokes control equation of K-epsilon model, performances of three-dimensional structure of parafoil, which was tested in NASA Langley research center to validate the feasibility of the method. The same method is applied to the designed parafoil to obtain the aerodynamic coefficients under different attack angles and different trailing edge of deflection, which provide basis for building the kinetics model accurately.