# How to create the mesh file used in the perpendicular-flap case in CalculiX

**URL:** <https://precice.discourse.group/t/how-to-create-the-mesh-file-used-in-the-perpendicular-flap-case-in-calculix/2164>\
**Category:** Using preCICE\
**Tags:** openfoam, calculix, fsi\
**Created:** [October 14, 2024, 8:42am UTC](https://precice.discourse.group/t/how-to-create-the-mesh-file-used-in-the-perpendicular-flap-case-in-calculix/2164 "2024-10-14T08:42:24Z")\
**Posts on this page:** 1\
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**Author:** ![fsimonis](https://yyz2.discourse-cdn.com/free1/user_avatar/precice.discourse.group/fsimonis/32/6_2.png) [@fsimonis](https://precice.discourse.group/u/fsimonis)\
**Post date:** [October 14, 2024, 9:02am UTC](https://precice.discourse.group/t/how-to-create-the-mesh-file-used-in-the-perpendicular-flap-case-in-calculix/2164/2 "2024-10-14T09:02:01Z")

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Hi,

Note that the `solid-calculix` contains two cases, which is mentioned in the case description:

> **[Perpendicular flap](https://precice.org/tutorials-perpendicular-flap.html#available-solvers)**
>
> This tutorial describes how to run a fluid-structure interaction using preCICE and any fluid-solid solver combination of our officially provided adapter codes.

There is a complete topic on generating CalculiX meshes and configuration files:

> [@How can I create a CalculiX mesh and configuration?](https://precice.discourse.group/t/how-can-i-create-a-calculix-mesh-and-configuration/827):
>
> This is a common question we often face, as many of our tutorials use CalculiX as the structure solver. I am barely familiar with CalculiX and I just wanted to collect here some resources, together with you. Reading the CalculiX documentation (PDF on the [website](http://www.dhondt.de/)) and manually setting up a case is one option. Another option that some people have had good experiences with is using the [FEM Workbench of FreeCAD](https://wiki.freecadweb.org/FEM_tutorial). What other options do you know? What are common tips and tricks you can offer to the…

For questions specific to CalculiX, I recommend having a look at the very active CalculiX discourse:

> **[CalculiX (official versions are on www.calculix.de, the official GitHub...](https://calculix.discourse.group/)**
>
> A place to discuss features and challenges using the Finite Element Code CalculiX. Official CalculiX versions are available at www.calculix.de, the official GitHub respository is at https://github.com/Dhondtguido/CalculiX

If you prefer learning-by-doing, then I recommend the new public FSI course created in collaboration with @Claudio.

> **[community-training/fsi-workflow at main · precice/community-training](https://github.com/precice/community-training/tree/main/fsi-workflow)**
>
> Training material developed together with the preCICE community, complementing the preCICE training course - precice/community-training

Best  
Frédéric

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