CFDEM®coupling - User Forum

This is a forum dedicated to CFDEM®coupling using the LIGGGHTS® DEM code and OpenSource CFD.

cfdemTestTUT works but Allrun.sh doesnt work for any tutorial

Submitted by tribeniroy on Sat, 05/06/2017 - 17:17

Hello everyone,

After quite a bit of struggle, seems as if CFDEM coupling installed. cfdemTestTUT showing results. However, I cannot run tutorials by using commands Allrun.sh or parCFDDEMrun.sh. Error: Command not found. Can anyone correct me on this as to how to go about running any tutorial? Or was there a problem with the installation.

cfdemcoupling pre installed on a Virtual Machine

Submitted by marchand on Sat, 05/06/2017 - 16:53

Hello,
considering large amount of time lost to try and install (unsuccessfully) a working version to run the tutorials, it would be very interesting to have access to a pre installed virtual machine with OF +liggghts + cfdem coupling.
Does it exist somewhere?
Regards,
Patrick

A comprehensive tutorial on CDFEM-coupling

Submitted by amitks91 on Sat, 05/06/2017 - 15:40

Hello ,

I am pretty much new member of this community. I have fair experience with LIGGGHTS . Now that I want to solve coupling problems, I am facing problems with using CFDEM-coupling as in how to change the LIGGGHTS input script for CFDEM and which solver to use. It would be of great help if anyone of you can share any information about it.

Thanks a lot
Cheers

Foam-extend 3.2 and CFDEM

Submitted by carboleda on Thu, 05/04/2017 - 14:35

Hi all,

I'm currently trying to set up the CFDEM(R) workbench in a personal computer with Ubuntu 16.04.1 LTS which has foam-extend-3.2 among other version of foam-extend and OpenFOAM(R).

So far, I have managed to compile LIGGGTHS(R) and CFDEM(R), following the instructions provided in:

https://www.cfdem.com/system/files/githubaccess_public.pdf

HUGE RAM consumption on cfdemSolverPiso

mbaldini's picture
Submitted by mbaldini on Thu, 05/04/2017 - 13:36

Hi all, I am having problems with ram usage.

I am running a simulation with particles of two sizes, 150000 particles of 1mm and 150000 particles of 1.8mm. The CFD mesh has arround 90.000 elements.

The problem is that the simulation uses a lot of memory, ~110GB when the total number of particles is inside the domain. I guess that I am having problems with my neighbor list.

First I set the skin to be equal to 1 particle (first the smallest and then the biggest) and the simulation started using swap (0ver 128 GB).

TRYING TO START PARAVIEW no such file or directory

Submitted by DINESH KUMAR on Wed, 05/03/2017 - 08:02

help me
while running fillcylinder tutorials it show error

mesh was built before - using old mesh
rm: cannot remove '/home/test/CFDEM/test-PUBLIC-/run/cfdemPostproc/fillCylinder/DEM/post/*': No such file or directory

// run_liggghts_fillCylinder_DEM //

/home/test/CFDEM/test-PUBLIC-/run/cfdemPostproc/fillCylinder/DEM

LIGGGHTS (Version LIGGGHTS-PUBLIC 3.6.0, compiled 2017-05-03-10:28:42 by test, git commit 18a96adf8688e0d46423c7d812001a8d9e0a9af0)
atom_style granular
atom_modify map array
communicate single vel yes

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