LIGGGHTS® - User Forum

Hi,

I want guidance related to setting up plane poiseuille flow with LIGGGHTS.

I've added "fix 9 all addforce 0.1 0.0 0.0"
Can anyone give me some guidance to proceed furthur ?

I'm attaching my input file here

"
atom_style granular
atom_modify map array
communicate single vel yes

boundary p f f
newton off

units si

region reg block 0 0.4 0 0.1 0 0.1 units box
create_box 1 reg

neighbor 0.001 bin
neigh_modify delay 0

Hello All

I am wondering if it is possible to restrict the motion of one particle type and seconds not?

Hello,
Need small help here.

I am trying to do simulation in Silo.
I am trying to insert 2 types of particles with fraction 0.5 and 0.5. But particle 1 is inserted more than particle 2. It seems particle 1 is inserted almost 80%.

Can I get hint what did I miss here ?

My script file is attach here.

Hoping for some help.

Thank you.

Hello all,
While compiling the src in LIGGGHTS-Public, I am getting the following error.

/usr/bin/ld: warning: libmpi.so.12, needed by /usr/lib/x86_64-linux-gnu//libvtkParallelMPI-6.2.so, not found (try using -rpath or -rpath-link)
size ../lmp_auto

Can anybody please help me with this issue?
Thanks in advance.

Regards,
Tarun

Hello Everyone
For Setting the value of the coefficient of friction using the same material, will the coefficient of friction will vary for different sizes of mono particles, binary and multicomponent mixtures in case of a hopper flow?

Thanks in advance.

Hello,
I am trying to understand the use of comand fix deform and triclinic box to generate a simulation like boundry less(less edwards condition).

I got the following error.

Hello LIGGGHTS users.

I have to apply Less Edwards Boundary Condition in one off my simulation.

Right now I got a script from LIGGGHTS packing example.

I tried to modified it.

My script looks like this

```
#Particle packing by insertion and successive growing of particles

atom_style granular
atom_modify map array
boundary m m m
newton off
#echo both
communicate single vel yes
units si
#box tilt small

Hello,

Hi Guys

If one has a vibrating screen deck, is it possible to assign multiple types of motion to the deck?
For example rotation and translational motion. The data for the accelerations and displacements will be calculated by means of differential equations, thus these will be used as input data.

Kind regards
Mishal Mohanlal

Hi Folks,
I am trying to delete the atoms after they reach a certain point, is there any kind of compute available for that? I am just using 1 type of particles for my simulation. I want them to be removed and not be tracked anymore.