fbpic_to_vtk

Export FBPIC simulation data onto cylindrical meshes for visualization in Paraview

Installation

Clone repository

git clone git@github.com:hixps/fbpic_to_vtk.git

Install

pip install fbpic_to_vtk

Useage

• Define input and output filenames, simulation timestep

  timestep        = 40000
  source_filename = f'fbpic_simulation_output.h5'
  output_filename = 'fbpic_data_on_vtk_grid.vtu'

• Define the names of the diagnostics to be exported, they need to be the same as the diagnostics in the fbpic input deck

  scalar_diag_names = ('rho_electron', 'rho_inner', 'rho_ion')
  vector_diag_names = ('E',)

• Settings for the vtk mesh

  • Define numer of points along theta Ntheta = 32
  • Define slices along z and r directions for downsampling

  downsample_r = slice(None, -2, 2)
  downsample_z = slice(None, None, 5)

• Run the exporter

  from fbpic_to_vtk import fbpicToVTK
  
  fbpicToVTK( source_filename,
          timestep,
          scalar_diag_names,
          vector_diag_names,
          downsample_r = downsample_r,
          downsample_z = downsample_z,
          Ntheta = Ntheta,
          output_filename = output_filename
          )

Example