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Sudarsan Balakrishnan 2026-03-12 12:51:54 -04:00
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README for ANASEN fem simulations:
### README for ANASEN fem simulations:
* There are a few iterations of these simulations that already exist. Be sure to also locate and refer to them if necessary.
* Install gmsh and its python api by running (Ubuntu 22.04 LTS)
* There are a few iterations of these simulations that already exist. Be sure to also locate and refer to them if necessary.
* Install gmsh and its python api by running (Ubuntu 22.04 LTS)
```
sudo apt install gmsh python3-gmsh
```
Gmsh gives us the tools to create a meshgrid that samples the 2d space appropriately to plot the field/equipotential lines.
The output file typically has the .msh extension. This is read as input to Elmer, which is the FEM differential-equation solver.
* Install Elmer via the following steps:
* Gmsh gives us the tools to create a meshgrid that samples the 2d space appropriately to plot the field/equipotential lines.
* The output file typically has the .msh extension. This is read as input to Elmer, which is the FEM differential-equation solver.
* Install Elmer via the following steps:
```
sudo add-apt-repository ppa:elmer-csc-ubuntu/elmer-csc-ppa
sudo apt install elmerfem-csc-eg
```
* Install ParaView for visualizations by downloading from the Linux .tar.gz link at https://www.paraview.org/download/
* Install ParaView for visualizations by downloading from the Linux .tar.gz link at https://www.paraview.org/download/
- The current version is tested to work on Paraview 6.1.0. The default version in Ubuntu 22.04 repositories has some trouble with scripting
* v0.0.1, March 10 2026
* v0.0.1, March 10 2026
- 2d simulations of fields only. gmsh for meshing, elmer for fem, paraview to plot
- Before running, open `paraview_plotter.py` to make the bash shebang (#!) point to the location of `pvpython` or `pvbatch`
- `python3 run.py` should run everything in order, and is hopefully all the files are self-documenting
* v0.0.2, planned TODO
* v0.0.2, planned TODO
- Garfield to take Elmer results and perform charge-transport