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streamer_1d

This is code for 1D discharge simulations with a particle-in-cell or fluid model.

Compiling the code

Compilation (requires gfortran):

$ cd streamer_1d
$ make

Running the code:

$ ./streamer_1d example_1.cfg
$ ./streamer_1d example_2.cfg

Options are specified in the configuration files that are passed as argument. You can also specify multiple configuration files, like:

$ ./streamer_1d a.cfg b.cfg

The later files will then override earlier options. Individual parameters can be also be passed:

$ ./streamer_1d example_1.cfg -end%time=1e-9

Program options

Please have a look at the provided example configuration files for all the settings.

Program output

Output files are stored in the "output" directory. The file names consists of several parts:

[output]_[model_name]_[number].txt

So if output%filename is "output/test", and you use a particle model, then the first output will be

test_particle_000001.txt

For the fluid model with the local field approximation "fluid" is added. The files contain a header that describes what they store. For fluid simulations, the columns are:

  1. position (m)
  2. electric field (V/m)
  3. electron density (1/m3)
  4. positive ion density (1/m3)
  5. potential (V)

To for example plot the electron density with gnuplot:

gnuplot
plot "output/example1_fluid_000001.txt" u 1:3

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