The CalculiX adapter can be used to couple CalculiX to CFD solvers for FSI or CHT application or even to couple CalculiX to itself.
Updated 16 Nov 22

Start here

  1. Get CalculiX and the dependencies
  2. Build the Adapter
  3. Configure and run simulations
  4. Follow a tutorial.

Are you encountering an unexpected error? Have a look at our Troubleshooting page.


The latest supported CalculiX version is 2.20. If you already have a copy of the adapter, check the adapter README for the CalculiX version it was made for.


The adapter was initially developed for conjugate heat transfer (CHT) simulations via preCICE by Lucia Cheung in the scope of her master’s thesis [1] in cooperation with SimScale. For running the adapter for CHT simulations refer to this thesis. The adapter was extended to fluid-structure interaction by Alexander Rusch [2].


[1] Lucia Cheung Yau. Conjugate heat transfer with the multiphysics coupling library precice. Master’s thesis, Department of Informatics, Technical University of Munich, 2016.

[2] Benjamin Uekermann, Hans-Joachim Bungartz, Lucia Cheung Yau, Gerasimos Chourdakis and Alexander Rusch. Official preCICE Adapters for Standard Open-Source Solvers. In Proceedings of the 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia, 2017.