.FreeFluids.Valves.ValveIncompressible

Extends the ValvePartial model, fixing isCompressibleFlow=false.

It adds the parameter Boolean isIsenthalpicFlow = true, in orther to specify the type of flow to consider. If made equal to false, adiabatic flow is considered.

It defines the State (for physical properties calculation) from the PortA variables.

An equation is added relating the two ports enthalpy, if calcEnthalpyDifference=true. If the flow is isenthalpic, they are the same. if it is not, only the differential height between ports is taken into account.