Tutorial

In this tutorial, we will look at in detail two simulations

• two-particles test
• two-particles with wall test
• compressive test with circular and hexagon shaped particles. Objective is to provide a very clear picture of setup and also provide some insights about the design of library.

We will use python helper script util.py to prepare the input.yaml (main input file), .geo (input file for gmsh), .csv (particle locations file). If one understands how to generate input files for the two tests considered here, it is super easy to create input file for any complex setup.

Two-particles test

See jupyter notebook two-particles test where we clearly explain every steps in the simulation.

Particle and wall test

See particle_wall.py. You can run the example using

python3 particle_wall.py --peridem_path=<path to PeriDEM executable>

Particle wall simulation

Two-particles with wall test

This is an simple extension of above test and the python script to create the input files are provided in two-particles with wall test. In this test, we have two concave particles and a rectangular wall. Top particle is assigned a high downward velocity where as the second particle below the top particle and above the wall is falling freely on wall due to gravity. Wall is fixed to its place using zero displacement boundary condiiton.

Compressive test

‍TBA