Properties: adiabatic, not isentropic, directional, outlet based restrictor
The geometry of a contraction is shown in Figure 95. It is described by the following constants (to be specified in that order on the line beneath the *FLUID SECTION, TYPE=RESTRICTOR CONTRACTION card):
The loss coefficient for a contraction is taken from .
By specifying the parameter LIQUID on the *FLUID SECTION card the loss is calculated for liquids. In the absence of this parameter, compressible losses are calculated.
Example files: piperestrictor, restrictor, restrictor-oil.