@wikipedia


Relates pressure drop   on the choke with the flowrate through the choke  arising from fluid friction with choke walls:

p_{out} - p_{in} =  \frac{\rho}{8.05 \, d^4] \, C_d^2} \cdot  q^2

where

fluid  density

choke orifice diameter


See also


Physics / Fluid Dynamics / Pipe Flow Dynamics / Pipe Flow Simulation (PFS)

Pipeline Engineering / Pipeline / Choke

Euler equation ] [ Water Pipe Flow @model ]



Nafta Pipeline Toolkit.xls