When an impeller is rotating, the water in contact with the impeller is also rotating. This is the case of:
A. Free vortex
B. Forced vortex
C. Magnus effect
D. Potential effect
Answer:B
When an impeller is rotating, the water in contact with the impeller is also rotating. This is the case of:
A. Free vortex B. Forced vortex C. Magnus effect D. Potential effect