Defining an outlet surface inside STL-surface

Submitted by tkulju on Fri, 08/31/2012 - 08:56

Hi!
Does anybody know, how I can make particles exiting a domain in LIGGGHTS-PUBLIC? I have defined the walls of the system as the STL-surface, and as the particles pass certain xy-plane, I want them to exit from domain. In the older version of liggghts in defined z-boundary (i.e. the xy-plane from where I want the particles to exit) inside the stl-surface and defined it as 'f'. Now I'm getting an following error:
ERROR: Mesh elements have been lost (multi_node_mesh_parallel_I.h:508)
Any ideas how to fix this?

- Timo

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moritzhoefert | Fri, 08/31/2012 - 12:25

Hi,

I think the complete mesh should be in your system bounding box. You can create an STL with a hole which the particles will then use as exit. And the boundary should be f such that the box does not grow.

Best,
m