Can sudden expansion loss coefficients be summed?

[JGonzalez]

I was wondering since I'm trying to figure out an equivalent loss coefficient for a manifold that has a specific geometry. I have several area sections and would like to know if I can just add up the resulting loss coefficients from one section to the other.

Any help would be greatly appreciated.

 

[Q_Goest]

See equation 2-5 attached.