This class models the pressure loss for a pipe. For the pipe flow, we assume that the pipe diameter D stays constant and that the pipe is straight. The energy equation for a non-horizontal pipe gives us the following equation:



The friction f can be computed from the Reynolds number according to the Colebrook equation below:



where

		:	Pressure difference between ports a and b
		:	Fluid density
g		:	Standard acceleration of gravity on Earth
H		:	Height difference between ports a and b
f		:	Pipe friction
L		:	Pipe length
D		:	Inner pipe diameter
V		:	Fluid velocity
		:	Pipe roughness

Reference

F. Young, R. Munson, H. Okiishi, and W. Huebsch, A Brief Introduction to Fluid Mechanics, 4th ed., Hoboken, NJ: Wiley, 2007 p. 291.

medium	Value: Oil() Type: Medium Description: Medium in the component
D	Value: 0.1 Type: Diameter (m) Description: Inner pipe diameter
L	Value: 1 Type: Length (m) Description: Pipe length
H	Value: 0 Type: Length (m) Description: Height for point B minus height for point A
epsilon	Value: 0.00026 Type: Real Description: Pipe roughness