Model of two resistances in series. One resistance has a fixed flow coefficient, the other resistance is an air damper whose flow coefficient is an exponential function of the opening angle.
If dp_nominalIncludesDamper=true, then the parameter
dp_nominal is equal to the pressure drop of the damper
plus the fixed flow resistance at the nominal flow rate. If
dp_nominalIncludesDamper=false, then
dp_nominal does not include the flow resistance of the
air damper.
noEvent to guard evaluation of the square root
for negative numbers during the solver iterations.
kRes, now the pressure drop of the fully
open damper is subtracted from the fixed resistance.
dp_nominalIncludesDamper.