Solving! Why can't the centrifugal pump be a front bend? Did not see the difference, and seek detailed comparison ~!
Then add thickness to each streamline, which is called the blade. That's how the leaves are drawn. The questions you ask are a bit distorted. And, oh, I'd like to look at the pump manual.
The blade is plotted according to the motion line of the medium, and the motion of the medium in the impeller has relative motion and circular motion. The relative motion is liquid movement along the streamline itself, and the circular motion is affected by centrifugal force, and the relative motion of the actual composition of circular motion of the medium in the impeller, the flow direction is the liquid in the impeller formed so many lines
The front bending has big head and low efficiency. The rear bending is efficient and the indenter is relatively low. The main difference is whether the exit direction of the fluid is consistent with the direction of rotation of the blade.
