Opened 6 years ago
Closed 6 years ago
#5160 closed defect (fixed)
Derivative information lost by the NF
Reported by: | casella | Owned by: | perost |
---|---|---|---|
Priority: | high | Milestone: | 2.0.0 |
Component: | New Instantiation | Version: | |
Keywords: | Cc: |
Description
Please check Modelica.Media.Examples.TestOnly.IdealGasN2Mix. The NF fails with
[OMCompiler/Compiler/BackEnd/Differentiate.mo:402:3-402:155:writable] Error: Derivative of expression "medium.h = Modelica.Media.Examples.TestOnly.IdealGasN2Mix.Medium.h_TX(medium.T, {1.0}, true, Modelica.Media.Interfaces.Choices.ReferenceEnthalpy.ZeroAt0K, 0.0)" w.r.t. "time" is non-existent. [Modelica trunk/Media/IdealGases/Common/package.mo:649:5-649:19:writable] Error: Internal error Differentiate.differentiateEquationTime failed for medium.h = Modelica.Media.Examples.TestOnly.IdealGasN2Mix.Medium.h_TX(medium.T, {1.0}, true, Modelica.Media.Interfaces.Choices.ReferenceEnthalpy.ZeroAt0K, 0.0)
apparently, some information is lost by the NF that prevents to correctly differentiate the equation - maybe the derivative annotation?
Change History (1)
comment:1 Changed 6 years ago by casella
- Resolution set to fixed
- Status changed from new to closed
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This problem is now fixed, the model fails because of #5201