> For the complete documentation index, see [llms.txt](https://docs.aviumtechnologies.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aviumtechnologies.com/user-guide.md).

# User guide

- [The configuration file](https://docs.aviumtechnologies.com/user-guide/the-configuration-file.md)
- [Calculating pressure](https://docs.aviumtechnologies.com/user-guide/the-configuration-file/calculating-surface-pressure.md)
- [Calculating skin friction](https://docs.aviumtechnologies.com/user-guide/the-configuration-file/calculating-skin-friction.md)
- [Creating control surfaces](https://docs.aviumtechnologies.com/user-guide/the-configuration-file/creating-control-surfaces.md)
- [Creating actuator disks](https://docs.aviumtechnologies.com/user-guide/the-configuration-file/creating-actuator-disks.md)
- [The mesh file](https://docs.aviumtechnologies.com/user-guide/the-mesh-file.md)
- [Creating meshes](https://docs.aviumtechnologies.com/user-guide/the-mesh-file/creating-meshes.md)
- [OpenVSP](https://docs.aviumtechnologies.com/user-guide/the-mesh-file/creating-meshes/openvsp.md): Creating an unstructured mesh with OpenVSP
- [SUMO](https://docs.aviumtechnologies.com/user-guide/the-mesh-file/creating-meshes/sumo.md): Create an unstructured mesh with SUMO
- [Preprocessor](https://docs.aviumtechnologies.com/user-guide/preprocessor.md)
- [Solver](https://docs.aviumtechnologies.com/user-guide/solver.md)
- [Steady simulations](https://docs.aviumtechnologies.com/user-guide/solver/steady-simulations.md)
- [Unsteady simulations](https://docs.aviumtechnologies.com/user-guide/solver/unsteady-simulations.md)
- [Symmetry](https://docs.aviumtechnologies.com/user-guide/solver/symmetry.md)
- [Wake](https://docs.aviumtechnologies.com/user-guide/solver/wake.md)
- [Interaction with the body](https://docs.aviumtechnologies.com/user-guide/solver/wake/interaction-with-the-body.md)
- [Viscous vortex particle wake](https://docs.aviumtechnologies.com/user-guide/solver/wake/viscous-vortex-particle-wake.md)
- [Output files](https://docs.aviumtechnologies.com/user-guide/output-files.md)