Abstract:

Abstract: With the assistance of the vector software for the characteristic curve figure of axial flow fan and based on the study of the gathering principle and the curve figure’s characteristics, this paper finds out: 1) the number of collection point can be controlled under six, or even three；2）except for the key points, the position of collection points should be on the turning point of the curve for better effect; 3）to meet the digitalization of most collection, the highest power of the fitting equation needs to be no higher than two.

Key words: Key Words: Collection, Characteristic Curve of the Fan, Digitalization