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Re: [Question #701110]: wall friction

 

Question #701110 on Yade changed:
https://answers.launchpad.net/yade/+question/701110

Jan Stránský proposed the following answer:
> the top wall still subjected to horizontal force
>
> id_box3 = O.bodies.append(box(...))# top wall
> O.forces.setPermF(O.bodies[-1].id,(0,force,0))

you yourself prescribed horizontal force

Why using O.bodies[-1].id and not much more readable topwall.id or id_box3 ?
Similarly for other occurrences of O.bodies[-N]

> the left and right walls still subjected to vertical force

difficult to say without a MWE [1], M=minimal, both from code AND number
of particles, running time etc. Please try to reduce your script.

You can check yourself the interactions of the side walls and the interactions properties (frictionAngle, contact point, forces, ...)
E.g. it is possible that the vertical force is not due to friction, but simply because some particles pushes the wall from bottom or from top.

Cheers
Jan

[1] https://www.yade-dem.org/wiki/Howtoask

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