Francesco Casella
Francesco Casella
With @GianniFerretti, we are considering models that have typical time constants of days, such as epidemiological models or weeks, such as bioreactor models. When developing hand-made code for these modes,...
[Section 4.7](https://specification.modelica.org/maint/3.5/class-predefined-types-and-declarations.html#balanced-models) of the specification discusses balanced models, in particular stating that the local equation size need to count "The number of input and flow variables present in each (top-level)...
The MLS, [Section 4.7](https://specification.modelica.org/master/class-predefined-types-and-declarations.html#balanced-models), Example 3, presents this use pattern ```modelica partial model BaseProperties "Interface of medium model" parameter Boolean preferredStates = false; constant Integer nXi "Number of independent mass...
Please check the [OpenModelica coverage report](https://libraries.openmodelica.org/branches/newInst/ElectricalEnergyStorage/ElectricalEnergyStorage.html) of your library. All models fail to compile because records are instantiated without giving values to some elements, that have no default value. I...
We are almost done with a new version of ExternalMedia that uses a dynamically linked library for the external functions and works on Dymola and OpenModelica both under Windows and...
I tried the new 3.3.1 release out of the .zip file with a recent nightly build OpenModelica v1.19.0-dev-559-g262ad75b37 (64-bit). `ExternalMedia.Test.TestMedium.TestState` compiles and simulates successfully. This is a non-trivial outcome, because...
Run `ExternalMedia.Test.TestMedium.TestState` with the latest nightly build of OpenModelica. The simulation runs successfully and produces the expected results for all the real variables of the state record. However, the phase...
I am involved in several studies of sCO2 systems, for which the interpolated CO2 medium of CoolProp is extremely handy. However, sCO2 systems exploit the strong real-gas effects close to...
I just tried out the newly released 3.3.1 version using Dymola 2022 under Windows 10, 64 bits. The examples in the ExternalMedia library seem to work fine. I then tested...
The `-d=arrayConnect` implementation currently has issues, most notably: - poor performance in some cases #9695 - generation of additional spurious connection equations as if ports were not connected, see #8014...