CFDEM®coupling - User Forum

Hi CFDEMers,

I am working on CFDEM in high performance clusters. Every time I have to spend days to update or reinstall cfdem package. Can anybody suggest a solution to install openfoam and cfdem without root access?

Thanks.

rq

Hi, everybody

I am trying to modify the tutorial to simulate the segregation of particles with different sizes. I tried a simple problem, a block with 90X90X1000, I poured a group particles with a diameter of 0.003 mm from z=0 to 350 mm, and then the other group with a diameter of 0.005 mm from z=350 to 700 mm. The result looks like that the larger particles can not fall down beneath z=350 to mix with the smaller particles, so do the small particles. Could somebody help me to solve this problem? What is the mistake i did in this case?

Thanks a lot!

Zhen Li

Hi everybody

I am trying to run the CFDEM coupling tutorials. However, I couldn't have made it for an unknown reason. Please tell me if you have any recommendation.

At the end of the terminal, I always get the same error:

(gnome-terminal:3075): Vte-2.90-WARNING **: No se pueden convertir caracteres de UTF-8 a actual.
Unhandled value type TerminalEncoding of pspec encoding

This error indicates that the characters can not be converted from UTF-8 to the current format.

Hi , I have made some changes and compiled a new solver based on version 1.7.x of CFDEM and OpenFoam. now I need to make LIGGGHTS again and include some of the optional packages ( Kspace,..) for DLVO forces. however, I see that instructions have changed and versions are different now. since my solver is only compatible with old version, I will appreciate if you provide me with the txt file that had instructions on compiling LIGGGHTS and CFDEM 1.7.x, so that I can compile my solver again.

Thanks,
Vajiheh

Dear all,

I do not recommend doing the installation as super user, as then the "std. user" might not be able to execute the solvers.

Cheers,
Chris

Hi Chris,

Today I installed OpenFOAM 2.1.1 and the latest LIGGGHTS 2.1.2 on my Laptop with the fresh installed Ubuntu 12.04 system, both worked perfectly.

When i came into compiling CFDEMcouling, the error information about "could not open file RASModel.H" appeared again.

---------------------
...........
could not open file RASModel.H for source file cfdemCloud/cfdemCloud.C
could not open file omp.h for source file cfdemCloud/cfdemCloud.C
could not open file openmpi/ompi/mpi/cxx/mpicxx.h for source file cfdemCloud/cfdemCloud.C

I installed LIGGGHTS yesterday,after run cfdemTestTUT,it opens two terminals .One of them named 'cfdemSolverPiso settling Test CFD',
I thought it might open a paraview,but actually it doesn't.It open a Document Viewer window,and shows
"Unable to open document
Error opening file:No such file or directory"
I don't know why.Pray your answer.

Hello:

Has anybody been succesful in installing CFDEM in MAC OS 10.7?

Thanks

Rafael

Hello everybody,

I am trying to install CFD-DEM on my Ubuntu 12.04 machine (via VirtualBox).

So far, I seemingly installed with success OpenFoam 2.1.1 and git-cloned LIGGGHTS 2.1.2 as well as CFDEMcoupling 2.1.1.

My problem is that the compilation of LIGGGHTS through command
"cfdemCompLIG" failed with the error message "virtual memory exhausted: Cannot allocate memory". The original OS of my computer is Windows; I installed VirtualBox and Ubuntu 12.04 on it, without trouble.

Hello,
Can someone please help me out with this error mentioned below. I have run the same script on LIGGGHTS successfully but it's showing error in the CFDEM solverpiso. Even pair style i changed to gran/hooke/history, it wasn't working with gran/hertz/history. Thanks in advance.

// run_parallel_cfdemSolverPiso_backward_step_CFDDEM //

/home/su/CFDEM/su-PUBLIC-2.1.1/run/backward_step/CFD

/*---------------------------------------------------------------------------*\
| ========= | |