Design and numerical simulation of a transonic swept fan DING Jian2guo,H U Jun

The paper employs arbitrary airfoil blade design procedures of turbomachinery to design a transonic wide-chord fan with forward-swept and back-swept blades.In the process of designing,the radial distributions of parameters(such as total pressure ratio,maximum relative thickness and thickness of leading and trailing edges of blade and so on,camber and maximum thickness as a fraction of chord) are adjusted,so that shock intension of blade tip is weakened,the loss of shock is debased,the conflict of high relative Mach number with low loss and high efficiency is overcome.Numerical simulation of core and bypass indicates that,the fan has a higher efficiency over a wider range and better stall margin.