# Centrifugal force and centrifugal pump

A rotating stone flys off tangentially when we cut the string and not radially. So how does centrifugal force "throw" the fluid outward (i.e radially) in case of centrifugal pumps? Also please explain the reason responsible for outward motion of fluid particle in case of centrifugal pumps.

• Who says the fluid flow leaving a centrifugal pump is radially outward? Jun 11, 2017 at 16:28
• So what are you saying? The fluid flow coming out of a centrifugal pump is not tangential? Jun 12, 2017 at 2:22
• Its not completely tangential neither radial...I am saying that the centrifugal force pushes it radially upward(so it flows along the curved blades) and the rotational flow gives it a tangential direction...you can check the velocity triangle and see the direction of absolute velocity. Jun 12, 2017 at 3:04
• @chester maybe what you're referring to is the relative component of velocity and I am to the absolute... But what I am trying to understand is what is the reason for this relative component of velocity or what is the reason why the fluid moves in the upward direction(from eye of the impeller to exiting the impeller into the casing)... And I conclude that centrifugal force is responsible for it...Please correct me if I am wrong. Jun 12, 2017 at 3:16