- #1
g0ggs123
- 22
- 0
Hi
I am trying to work out a problem with a piece of equipment:
imagine a container that has grease injected into it at say 3,000 Psi
The container has a piece of wire running though the middle vertically with a 100lbs weight attached to bottom. Only the wire is in contact with the grease and the mass is outside of the container.
I'm trying to work out what weight you would require to overcome the frictional force/drag associated with the grease acting on the wire.
My first though was F=uN where N is the F=PA, P= 3,000 and A = cross sectional area.
But is this oversimplified? Should I be introducing the navier stokes equation?
This is a real problem not a piece of homework :)
Any suggestions would be most welcome.
Cheers
I am trying to work out a problem with a piece of equipment:
imagine a container that has grease injected into it at say 3,000 Psi
The container has a piece of wire running though the middle vertically with a 100lbs weight attached to bottom. Only the wire is in contact with the grease and the mass is outside of the container.
I'm trying to work out what weight you would require to overcome the frictional force/drag associated with the grease acting on the wire.
My first though was F=uN where N is the F=PA, P= 3,000 and A = cross sectional area.
But is this oversimplified? Should I be introducing the navier stokes equation?
This is a real problem not a piece of homework :)
Any suggestions would be most welcome.
Cheers