Design method for rear guide vane of axial flow fan with adjustable movable vane

The invention discloses a method for designing a rear guide vane of an axial flow fan with an adjustable movable vane, which comprises the following steps of: firstly, determining the number N of modeling sections of the rear guide vane along the blade height section; secondly, aiming at N modeling sections, respectively providing a modeling method of a blade profile section curve of each section; and finally, the blade profile section curves of the N blade height sections are stacked in the blade height direction, three-dimensional model modeling of the rear guide blades is completed, and the number of the rear guide blades is determined. On the premise that the movable impeller of the axial flow fan with the adjustable movable blades is kept unchanged, the rear guide blades are optimized and designed behind the movable impeller of the fan, and the dual purposes of improving the running pressure of the fan and improving the actual running efficiency of the fan can be achieved. 本发明公开了一种动叶可调式轴流风机后导叶设计方法，包括：首先，