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An entrance element is used to model the entry from a large chamber into a gas
pipe. For an entrance the value of
is 0.5. It is described by the following constants (to be specified in that order on
the line beneath the *FLUID SECTION, TYPE=RESTRICTOR
ENTRANCE card):
- cross section of the entrance
.
- hydraulic diameter
defined by
where
is the
perimeter of the cross section.
- oil mass flow in the restrictor (only if the OIL parameter is used to define
the kind of oil in the *FLUID SECTION card)
guido dhondt
2009-08-12