Mesh error

Submitted by jw851602 on Tue, 09/03/2013 - 17:15


I'm a student from Germany and a newbie in using Liggghts.
I'm trying to import a STL-File from a CAD-Software and I get the following error:

Reading STL file 'behaelterNX.stl'
Setting up run ...
ERROR: Mesh error: dimensions too small - use different unit system (multi_node_mesh_parallel_I.h:536)

I have no idea what's wrong with my code or with my STL file and I hope that I get some help here in this forum.
During the simulation several particles should fall into a container and later I want the container to move.

Thank you for your help.

Binary Data behaelterNX.stl_.gz3.31 KB
Plain text icon input.txt2.06 KB

AGl | Wed, 09/04/2013 - 09:42


your STL-file is in binary format, but it should be in ASCII.

jw851602 | Wed, 09/11/2013 - 16:03

thank you, problem is solved now.
But I have a new question:
In order to visualize my solutions I use pizza and open the VTK-files with paraview. While using the glyph filter I have problems with the radius of the spheres. In my simulation I set particle diameter to 0.08m. I can set the diamater of the spheres to the same value in paraview but the particles are far too small. With a value of d=0.4 I get good results. Why there is a difference?
Thank you for your answers.

aaigner's picture

aaigner | Thu, 09/12/2013 - 12:14

Which ParaView version do you use?

Check your glyph settings (version 3.12):
Scalars radius
Glyph type Sphere
Radius 1
Scale Mode scalar
Set scale factor 1 (x) Edit!!


jw851602 | Fri, 09/13/2013 - 10:16

Thank you! This seems to work!
Previously, i set
Radius 0.08
Glyph type Sphere
Scale Mode Off
With your suggested settings the results are realistic!