Figure 25 shows that under the NZHC, the flow rate of the pump system is large, the angle between the relative velocity of the liquid flow and the circumferential direction is increased, and the blade angle i
Leading Edge Thicker portion of the airfoil that is the first part of the blade to meet the air. Net Free Area Net area at the plane of the fan through which all air must pass. Usually based on the nominal fan diameter minus seal disc area or hub diameter. Note that blade area is ...
This is the reason why the resultant torque oscillations on a rotor blade are weaker. It is noted that, for either the rotor or the stator, the oscillations in the total force of all the blades are much weaker than that of one blade (see Figure 10), and they only occur at the ...