I am trying to fill the spherical particles inside the cubic bed. I have created the geometry using the blender. But no matter how refined the mesh I am creating liggghts is showing mesh error like curvature aspect ratio etc. I see tutorial examples of liggghts, it seems mesh should not be a big issue, but why I am getting this error? Another question is in my mind that whether the blender is good software for creating geometry for DEM purposes?
Which software is more suitable for stl or obj file
Thanks in advance
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pfalkingham | Mon, 10/25/2021 - 12:28
yes, blender works fine.
Blender is absolutely fine for creating Geometry. I've used both Blender and Maya to produce input STLS for LIGGGHTS (https://royalsocietypublishing.org/doi/full/10.1098/rsfs.2020.0075, https://onlinelibrary.wiley.com/doi/full/10.1111/pala.12502)
Try using the Quadriflow remesh in blender to make sure the object is nicely meshed with relatively even polygons.
Daniel Queteschiner | Thu, 10/28/2021 - 10:29
Alternative
Any 3d modelling program that is able to export to STL format should do. Some tools are more suitable (e.g. allow you to easily control the quality of the mesh) than others ...
An open source alternative that is actually intended to produce meshes for numerical simulations is, for instance, Salome: https://www.salome-platform.org/