Returns the pressure drop associated with a rounded inlet given the fluid, its flow rate and state, the radius of the inlet and the diameter of the pipe.  Valid for circular duct cross-sections.  This function calls the K_Rounded_Pipe_Inlet function from the minor loss library.


DELTAP = DuctRoundedInlet_CL(F$, m_dot, T, P, r, D)



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)

r:  radius of inlet (m or ft)

D:  downstream duct diameter (m or ft)



DELTAP:  pressure drop (bar, atm, Pa kPa, or MPa)



$UnitSystem SI Mass J K Pa Degree

$Load Component Library

$VarInfo DP units=Pa


m_dot = 0.2 [kg/s]

T = 300 [K]

P = 100e3 [Pa]

r = 0.05 [m]

D = 0.1 [m]

F$ = 'Air'

DP = DuctRoundedInlet_CL(F$, m_dot, T, P, r, D)



DP = 14.22 [Pa]}