DuctExtractMain90B_CL
Returns the pressure drop associated with an extract duct with a branch. The branch is at 90 degrees and the ducts have circular cross-section. The pressure drop should be applied to the flow in the main duct. The function uses the information from the Lindab web site. Ducts 2 and 3 have the same diameter.
DELTAP = DuctExtractMain90B_CL(F$, v_3, v_2, T, P)
Inputs:
F$: fluid string identifier
v_2: velocity in main duct upstream of branch (m/s, ft/s)
v_3: velocity in main duct downstream of branch (m/s, ft/s)
T: inlet temperature (K, C, F, or R)
P: inlet pressure (bar, atm, Pa, kPa, or MPa)
Output:
DELTAP: pressure drop (bar, atm, Pa kPa, or MPa)
Example:
$Load Component Library
$UnitSystem SI Mass kJ C Pa
$VarInfo DP Units='Pa'
F$ = 'Air'
T = 20 [C]
P = 100000 [Pa]
v_3 = 14 [m/s]
v_2 = 8 [m/s]
DP = DuctExtractMain90B_CL(F$, v_3, v_2, T, P)
{Solution:
DP = 36.92 [Pa]}