classBalancedModels
Extends from Modelica.Icons.Information (Icon for general information packages).
Information
Some models are not balanced:
-
Underdetermined by one equation:
Sink_free,
LoopBreaker,
JunctionT1 and
JunctionT2,
and models extending PartialVolume for
enableFreeInlet = true. - Overdetermined by one equation: MassFlowRate, and Separator.
Processes such as Adiabatic or Isobaric can be either determined, overdetermined or underdetermined. If the process model is underdetermined it cannot be balanced, which is indicated by a prominent red lightning symbol.
Over- and underdetermination are indicated on icon layer by plus and minus.
Combine under- and overdetermined models to obtain a balanced overall model, i.e. plus and minus have to cancel eachother out. See examples such as
- Examples.AirCycle.Step5Splitter,
- Examples.AirCycle.Step6Junction,
- Examples.JouleBrayton.Step7HeatFlow,
- Examples.VaporCycle.Step3Staged, or
- Examples.VaporCycle.Step4Separator,
as well as test models such as
Revisions
-
2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
Initial version.