CFDEM®coupling - User Forum

Hi, Chris,

I have a small question that happened in the coupling case that I modified. It is pouring case which pours particles from the air to the water. There was no problem when I try a small number of particles, however, when I increased the number to about 1000, the foam would finish while the liggghts would not stop and keep waiting in the middle.

Why would this happen and could you let me know how I could solve this issue?

Many thanks for your kind help!

Best,
Tong

CFD:
...
wait for file "/home/tong/Software/cfdem/test2/CFD/couplingFiles/radius1"

Dear all

I was impressed on cfd-dem coupling and tried to use it.

I am running ubuntu 10.10 and several versions of openfoam, but have no experience on lggghts or dem coupling.

I first downloaded lggghts and managed to run LGGGHTS example chute_wear

then i tried to link dem with OF1.6.x

i down loaded cfd-dem using git and managed to compile cfdemCloud scr and make library from it. I also compiled cdfdemSolverPisoExplicit to OFuserapplications library succesfully.

Then i tried to run example case settlingTest, after modifying Allrun.sh as below

Hi, Chris

However, I met a new error in cfdemSolverPisoExplicit compilation, saying:

...
/usr/bin/ld: cannot find -lPstream
collect2: ld returned 1 exit status
make: *** [/home/tong/OpenFOAM/tong-1.6/applications/bin/linux64GccDPOpt/cfdemSolverPisoExplicit] Error 1

How can I resolve this linking error?

Thanks for your reply.

Best,
Tong

tong@tong-laptop:~/Software/cfdem/cfdemSolverPisoExplicit$ wmake
Making dependency list for source file cfdemSolverPisoExplicit.C
could not open file RASModel.H for source file cfdemSolverPisoExplicit.C

Dear all,

In order to ease your life I summed up the commands necessary to pull, compile, run CFD-DEM coupling src, solver and testcase:

#- this was tested with the latest version of liggghts and OpenFOAM(R)-1.6

#- go to the directory where you want the files to live

#- to get the files from GIT use the command:
git clone git://cfdem.git.sourceforge.net/gitroot/cfdem/cfdem mycfdem

#- you'll get a directory:
mycfdem

#- this directory includes the directories:
cfdemParticle cfdemSolverPisoExplicit settlingTest

#####################################
# compile src

Hi everyone!

soon (within the next weeks) we will provide a basic version of CFD-DEM coupling with LIGGGHTS. This forum will be our platform to exchange thoughts, problems and hopefully solutions!

Cheers,
Christoph