Calculating Force & Torque from Submersible Well Pump

[aladinlamp]

Homework Statement

Imagine this submersible well pump pumping water straight up

volume flow 1 liter/second
fluid speed 10m/s

Since pump is pushing on the fluid, fluid has to push on pump as well

Will it be linear vector force downward or torque or combination of both ?

How do i calculate their magnitude?

Homework Equations

m1 u1 + m2 u2 = m1 v1 + m2 v2

Also Δp1 = −Δp2

The Attempt at a Solution

I assume combination of both reaction forces.

 

[voko]

Looking at the picture, the pump seems to eject water vertically, from the head located on its vertical axis of symmetry. So I think there is no torque to speak of.