7. Tutorials

This chapter will give a detailed overview of simulations with PICLas. It assumes that you are familiar with setting the compiler options and compiling the code. The paths to the executables are omitted. It is assumed that you have either added aliases for piclas, hopr and piclas2vtk, or that you added the binary directories to your $PATH variable as described in Directory paths.

Each tutorial is equipped with .ini files, hopr.ini, parameter.ini, posti.ini and for DSMC setups DSMC.ini, as well as the mesh file *_mesh.h5 in the HDF5 format (created with hopr).

hopr.ini
parameter.ini
DSMC.ini
posti.ini
mesh.h5

It is suggested to copy each folder to a new directory, where you can run and modify the parameter (*.ini) files.

Table of Contents

• 7.1. Plasma Wave (PIC, Poisson’s Equation)
  • 7.1.1. Mesh Generation with HOPR (pre-processing)
  • 7.1.2. PIC Simulation with PICLas
  • 7.1.3. Visualization (post-processing)
• 7.2. Adiabatic Box/Reservoir (DSMC, Relaxation/Chemistry)
  • 7.2.1. Mesh Generation with HOPR (pre-processing)
  • 7.2.2. Simulation: Chemistry disabled
  • 7.2.3. Visualization, chemistry disabled (post-processing)
  • 7.2.4. Simulation: Chemistry enabled
  • 7.2.5. Visualization, chemistry enabled (post-processing)
• 7.3. Hypersonic Flow around the 70° Cone (DSMC) - 2D Mesh
  • 7.3.1. Mesh Generation with HOPR (pre-processing)
  • 7.3.2. Flow simulation with DSMC
  • 7.3.3. Run the simulation
  • 7.3.4. Visualization (post-processing)
• 7.4. Hypersonic Flow around the 70° Cone (DSMC) - 3D Mesh with Gmsh
  • 7.4.1. Mesh generation with Gmsh
  • 7.4.2. Flow simulation with DSMC