Dear GiD team,
I'm trying to generate a random close packing of equal size spheres inside a rectangular volume. I have tried the radius expansion and other RBall options, with min radius factor 0,9999 and max radius factor 1,0001. It still doesn't generate equal size spheres and the packing is not very dense. I am using the evaluation version of GiD 13.0.1. Can you give some advice how to get better packings?
Cheers,
Oskari
Generating a random closepacking of spheres
Moderator: GiD Team
Re: Generating a random closepacking of spheres
Try also the 'Granular' sphere mesher with 'Constant' distribution size
Utilities->Preferences..
Meshing->Sphere/circle->Selected mesher: Sphere=Granular
Meshing->Sphere/circle->Granular->Distribution type: Constant
Utilities->Preferences..
Meshing->Sphere/circle->Selected mesher: Sphere=Granular
Meshing->Sphere/circle->Granular->Distribution type: Constant
Re: Generating a random closepacking of spheres
Hi,
Thanks for the reply. I was able to generate a pretty good packing with the radius expansion mode in RBall. I got a packing fraction of approximately 0.61 for spheres of radius 0.65 inside a cube of 10x10x10. However all the other modes gave me as a result a packing of 1 big sphere. I kept all the other options such as element size and iteration numbers constant. Is there a reason these other algorithms keep failing? I suppose the Optimization Radius should be at least pretty effective.
Cheers,
Oskari
Thanks for the reply. I was able to generate a pretty good packing with the radius expansion mode in RBall. I got a packing fraction of approximately 0.61 for spheres of radius 0.65 inside a cube of 10x10x10. However all the other modes gave me as a result a packing of 1 big sphere. I kept all the other options such as element size and iteration numbers constant. Is there a reason these other algorithms keep failing? I suppose the Optimization Radius should be at least pretty effective.
Cheers,
Oskari