Global ODEs and DAEs

Describe a spatially lumped system using differential and algebraic equations.

Where to find it

Physics → Add Physics → Global ODEs and DAEs; System → physics node

How to use it

Add Differential State or Algebraic State features, enter their expressions and initial values, and define any global parameters and outputs. Choose an available study in System Solvers and run it after building any required mesh.

Result

Inspect state histories and expression outputs from the selected study.

Troubleshooting

Algebraic constraints and initial states must be mutually consistent. Every expression must have the units of the equation it belongs to.