Questions tagged [openmodelica]
OpenModelica is an open-source implementation for the Modelica modeling language.
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Recommended language/environment for large scale semi-continuous biological models
We have a fairly large (maybe 1000 equations) differential-algebraic equation model written in ACSLX, an obsolete modelling environment similar to Modelica. The model represents the evolution of a ...
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Modelica and SIMULINK yield completely different results
I'm trying to simulate a 1D model of two bodies sliding on each other with a Coulomb friction in between.
As I have explained here I modeled the friction as :
The force required to keep two bodies ...
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Finite difference method not working for advection PDE with negative coefficient
I'm trying to solve a very simple advection PDE
$\frac{\partial u}{\partial t}+c\frac{\partial u}{\partial x}=0$
where $c<0$.
I have been able to implement a simple Modelica code to solve the ...
- 147
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Object-oriented non-linear solving in python
I'd like to build a system in Python, consisting of (broadly speaking) objects which are internally described with (not necessarily just linear) equations, that I can connect with each other - similar ...
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Alternatives to Comsol Multiphysics
This might be a question better suited for the Software Recommendations side of S.E., however I do believe that people who frequent this part of S.E. are more likely to be able to answer this question....
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Modelica "derivative" annotation problem
I have questions about the use of "derivative" annotation I wanted to ask you. Lets put a sample.
The equation is this:
z_level = LevelZ(time);
where LevelZ(...
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How to do something in Modelica every solver iteration?
How is it possible to do something once every solver iteration?
The expressions when change(time) or when time > pre(time) ...
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How to do co-simulation with two FMU models
I have two FMU developed with different simulation tools. I would like to connect them through some variables and run a co-simulation with an open source tool as OpenModelica. This co-simulation has ...
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