thank you for the upload , can you make a video about about non spherical particles like multi-spheres and improve they're look as a single one because particles in most cases are not spherical if you have tips feel free to share them
Thanks for the suggestion Pain, we will make a video about this topic. However, particle system can be simplified usually pretty good using round particles as long the particle flow behaviour is calibrated to the laboratory experiments of the real bulk material you want to simulate. the actual from of the particles can be neglected in limits.
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? Thanks in advance
Hey Pratyush, Sometimes meshing can be challenging, but for simple geometry should be no problem. If you have a *.step file you can also use netgen which makes quite good meshes for non complex grometries. Give it a try. Cheers
I had problems with my mesh in LIGGGHTS recently. I mostly use Space Claim, FreeCAD and the geom module from SalomeMeca to generate my meshes. The ones from SalomeMesa usually are the cleanest ones. Also be conscious about the unit to export the STL, some softwares export them in mm, always open the mesh in Paraview to check.
thank you for the upload , can you make a video about about non spherical particles like multi-spheres and improve they're look as a single one because particles in most cases are not spherical if you have tips feel free to share them
Thanks for the suggestion Pain, we will make a video about this topic. However, particle system can be simplified usually pretty good using round particles as long the particle flow behaviour is calibrated to the laboratory experiments of the real bulk material you want to simulate. the actual from of the particles can be neglected in limits.
thank you so much!
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?
Thanks in advance
Hey Pratyush,
Sometimes meshing can be challenging, but for simple geometry should be no problem. If you have a *.step file you can also use netgen which makes quite good meshes for non complex grometries. Give it a try.
Cheers
I had problems with my mesh in LIGGGHTS recently. I mostly use Space Claim, FreeCAD and the geom module from SalomeMeca to generate my meshes. The ones from SalomeMesa usually are the cleanest ones. Also be conscious about the unit to export the STL, some softwares export them in mm, always open the mesh in Paraview to check.