Fred Evans
Jan5-10, 09:17 PM
hello all,
i need to calculate the size of an orifice that will pass a certain volume of a viscous fluid
per time of say 10 seconds
pressure and viscosity are the variable values.
the application is in the design of a valve for dispensing accurate amounts of
a liquid of a given viscosity. (the liquid is polyurethane prepolymer which is a sticky
fluid of which the viscosity is always known but varies from batch to batch)
the viscosity changes with temperature
Can anyone please suggest a formula ?
Best regards
fred evans
( this is my first post-- and I see i can attach 5 tags-- what is a tag?
i need to calculate the size of an orifice that will pass a certain volume of a viscous fluid
per time of say 10 seconds
pressure and viscosity are the variable values.
the application is in the design of a valve for dispensing accurate amounts of
a liquid of a given viscosity. (the liquid is polyurethane prepolymer which is a sticky
fluid of which the viscosity is always known but varies from batch to batch)
the viscosity changes with temperature
Can anyone please suggest a formula ?
Best regards
fred evans
( this is my first post-- and I see i can attach 5 tags-- what is a tag?