DuctReentrantInlet_CL
Returns the pressure drop associated with a reentrant inlet given the fluid, its flow rate and state, the length of reentrant duct, the duct wall thickness, and the diameter of the duct. Valid for circular duct cross-sections. This function calls the K_Reentrant_Pipe_Inlet function from the minor loss library.
DELTAP = DuctReentrantInlet_CL(F$, m_dot, T, P, L, th, D)
Inputs:
F$: fluid string identifier
m_dot: mass flow rate (kg/s, lbm/hr)
T: inlet temperature (K, C, F, or R)
P: inlet pressure (bar, atm, Pa, kPa, or MPa)
L: length of reentrant duct section (m or ft)
th: thickness of duct wall (m or ft)
D: downstream duct diameter (m or ft)
Output:
DELTAP: pressure drop (bar, atm, Pa kPa, or MPa)
Example:
$UnitSystem SI Mass J K Pa Degree
$Load Component Library
$VarInfo DP units=Pa
m_dot = 0.1 [kg/s]
T = 300 [K]
P = 100e3 [Pa]
L = 0.015 [m]
th = 0.002 [m]
D = 0.15 [m]
F$ = 'Air'
DP = DuctReentrantInlet_CL(F$, m_dot, T, P, L, th, D)
{Solution:
DP = 10.75 [Pa]}