DuctBend_CL
Returns the pressure drop in a duct bend given the fluid, its flow rate and state, the bend radius, duct diameter ratio and turning angle. This function calls the function K_Bend from the minor loss category of the heat transfer library.
DELTAP = DuctBend_CL(F$, m_dot, T, P, R, D, alpha)
Inputs:
F$: 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)
R: bend radius (m or ft)
D: duct diameter (m or ft)
alpha: turning angle (radian or degree)
Output:
DELTAP: pressure drop (bar, atm, Pa kPa, or MPa)
Example:
$Load Component Library
$UnitSystem SI Mass J K Pa Degree
$VarInfo DP_Duct units=Pa
m_dot = 0.1 [kg/s]
T = 300 [K]
P = 100e3 [Pa]
R = 0.2 [m]
D = 0.1 [m]
alpha=65 [degree]
F$ = 'Air'
DP_Duct = ductbend_cl(F$, m_dot, T, P, R, D, alpha)
{Solution:
DP_Duct = 12.85 [Pa]}