LIGGGHTS® - User Forum

hallo everyone,

I would like to pack a mixture of two kinds of powders, 5000 for atom type 1 and 2000 for atom type 2. But the text file showed that there were only 5000 in total. Can anyone tell me how I can deal with it?

Best regards,
Sang

Hi,

Hello, I am using LIGGGHTS-WITH-BONDS and I would like to set my bond cutoff length as
cutoff = (R1 + R2) + G*(R1 + R2)
where R1 and R2 are the radii of the two particles and G is a value defined by me. How can I implement this into the line
fix bondcr all bond/create/gran 1 1 1 cutoff 1 26

Hello,

I am running the following code and facing some problem.

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#Simple chute wear test

atom_style granular
atom_modify map array
boundary m m m
newton off

communicate single vel yes

units si

region domain block -0.5 0.5 -0.5 0.5 -0.5 0.5 units box
create_box 1 domain

neighbor 0.2 bin
neigh_modify delay 0

Hello,

I am facing the following problem when trying to run the Ligghts.

Hello. when I am trying to install LIGGGHTS, I am facing the following problem. Can anyone point out that what is going on?

Hello,
I am a new user to both Ubuntu and LIGGGHTS. I am using ubuntu 20.04. I am facing the following problem during the installation. May I know where is the problem going on?

Hello community,

I am working on my Master Thesis in the form of a continuous mixer, I am currently in the process of determining the parameters inside the cylinder and it is set as a residence time of particles in the simulation domain as one of the main factors.

According to the documentation, such an approach has already been given as a ready-made function:
https://www.cfdem.com/media/DEM/docu/fix_property_atom_region_tracer_tim...

Hi Guys

Is there anyway to attained material loading on the walls of a silo during flow?

I know this can be calculated analytically, however is it possible to perform this using LIGGGHTS?

Kind regards

I see that several people in the forum has experienced particles penetrating through the wall, but has anyone experienced a case in which particles do/don't penetrate the wall depending on the computational domain size?