Design and core and bypass numerical simulation of acompound swept fan

An arbitrary airfoils blade design procedure was adopted to redesign a transonic fan with compound swept.by adjusting the distribution of crucial design parameters in the process of redesign,the loss of shock was depressed,the conflict of the high relative Mach number and low loss/high efficiency was overcome.Numerical simulation core and bypass indicate that,the efficiency of design point falls little,but the efficiency of take off point improves significantly,and the matching of core and bypass of the fan and booster is also promoted efficiently.