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ODE VS DAE - Which one should i use for modeling?

#7315  Permalink Top

ODE VS DAE - Which one should i use for modeling?

Dec-01-16 14:21:31

Hello!

I'm new to OpenModelica. I wonder which one i should use when it comes to simulate a model? ODE or DAE?

I'm very used to ODE due to Laplace transform when it comes to frequency analisis and State-space when it comes to more that one input/output e.g complex systems. But I see that a lot of OpenModelica users are using DAE insted of ODE - why? Is the Modelica language better fitt with DAE insted of ODE?

#7400  Permalink Top

Re: ODE VS DAE - Which one should i use for modeling?

Dec-25-16 10:52:20

DAE (Differential Algebraic Equations) is used when you a have a mix of Ordinary differential equations and algebraic equations that describe the system you are modelling. But you if you simply have pure ODE (Ordinary differential Equations) set you don't need a DAE solver.

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