friction

Submitted by ehsan on Sun, 05/26/2013 - 08:27

Hello all
I have a problem.
This is part of my input:
fix boxwalls_z1 all wall/gran/hertz/history primitive type 1 zplane -0.025
fix boxwalls_z2 all wall/gran/hertz/history primitive type 1 zplane +0.025
I want to particles have friction together but do not have friction with the
zplans!
How can i ?
Please help me
Thank you

Forums:

aaigner's picture

aaigner | Sun, 05/26/2013 - 11:21

Hi ehsan,

just use 2 different types. Then you can define different friction coefficients, e.g.
fix m4 all property/global coefficientFriction peratomtypepair 2 0.5 0.0 0.0 0.0
You use type 1 for the particles and type 2 for the walls.

Cheers
Andreas