Example 0: run a simulation

This example will show the ingredients of a simulation by simulating a sphere free falling onto a ground. We prepare a Python script named ‘example0.py’ at our work directory (e.g., /home/xxx/example'). Open a terminal, and type ‘sudodem3d example0.py’ if the work directory is at ‘/home/xxx/example/’ otherwise providing a relative or absolute path of ‘example0.py’.

Here is the script of ‘example0.py’:

1# A sphere free falling on a ground under gravity
2
3from sudodem import utils # module utils has some auxiliary functions
4
5#1. we define materials for particles
6mat = RolFrictMat(label="mat1",Kn=1e8,Ks=7e7,frictionAngle=math.atan(0.0),density=2650) # material 1 for particles
7wallmat1 = RolFrictMat(label="wallmat1",Kn=1e8,Ks=0,frictionAngle=0.) # material 2 for walls