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The CELMA model

The CELMA-model is a global drift-fluid model for modeling plasma turbulence in a linear device with constant magnetic field. The model describes the spatio-temporal evolution of the density, modified vorticity, momentum-density and current. It assumes isothermal electrons and cold ions, and does not use the Boussinesq-approximation. The derivation of the model can be found in the Derivation-part, and set of equations can be found under 5.6 The set of equations [here]({{ page.diss_url }}).

The CELMA code

The [CELMA-code]({{ page.repo_code_url }}) is written using the BOUT++-framework, and contains:

  • The code for simulation of the full model.
  • The code for simulation of the model using the Boussinesq approximation.
  • Pre- and post-processing scripts using python3.
  • Verification of the code using the Method of Exact Solutions.
  • Jupyter-notebooks for derivation of operators not already in the BOUT++ framework.

Add-ons to the BOUT++ framework is documented using doxygen.