classInertanceNeglect

Information

Inverse calculations are supported, for example, determining the mass flow rate from a specified temperature difference and heat flow.
Such inverse calculations may require removing the derivative of the mass flow rate der(m_flow). This can be achieved by setting considerInertance = false for all affected models, e.g., via dropOfCommons.considerInertance, see DropOfCommons.
Index reduction and/or convergence may depend on the algorithm/nonlinear solver, that is, it may depend on the software and the version used. Setting considerInertance = false can help achieve index reduction and convergence.
Setting considerInertance = false is intended for advanced use only.
Examples requiring considerInertance = false in Dymola 2026x Refresh 1 are marked with a red L.
Examples not requiring considerInertance = false in Dymola 2026x Refresh 1 but requiring considerInertance = false in Open Modelica v1.26.3 are marked with an orange L.
Components with considerInertance = false are highlighted by a red dot in the graphical layer.
Various approaches for inverse calculations are used in Idealized.Tests.Inversion and Idealized.Examples.TUMExercisesThermodynamicCycles.

Revisions

• 2026, by Raphael Gebhart (raphael.gebhart@dlr.de):
  Initial version.