CFDEM®coupling - User Forum

Hello,

I am Aharón Sánchez, and I have a doubt. I want to modelize the behaviour of a group of stones (near 63 mm of diameter) when some vibrations are induced in them. Can anyone tell me if this is possible?
How can I model vibrations?

Hello,

Can I restart CFD-DEM simulations from the latest Time (by simply changing controlDict)?

My restarted simulations run into an error immediately even though the simulations run correctly if started from time 0. I am also saving the liggghts restart files and reading from the correct restart file when I am trying to restart. Has anyone faced similar problems or knows how to restart a simulation?

hello all,

Dear cfdem experts,

I am trying to compile the latest cfdem on OpenSUSE 12.1 (64 bit) and ran into an error:
----------------------------------------
In file included from subModels/dataExchangeModel/twoWayMPI/twoWayMPI.C:30:0:
subModels/dataExchangeModel/twoWayMPI/twoWayMPI.H:47:62: fatal error: lammps.h: No such file or directory
compilation terminated.
make: *** [Make/linux64Gcc46DPOpt/twoWayMPI.o] Error 1
make: *** Waiting for unfinished jobs....

Hello all,

Dear every one,

I will be appreciate if anyone tell me why the following error is produced after first simulation on liggghts.

Thanks in advance

Cheers,
Ebrahim

_______________________________________________________________________________________________________

couplingStepInterval = 1
solving volume averaged Navier Stokes equations of type B
Starting time loop
Time = 0.001
Courant Number mean: 1.51515e-05 max: 0.00454545
- evolve()

Starting up LIGGGHTS

Executing command: 'run 100 '
run 100 Setting up run ...
Memory usage per processor = 13.3038 Mbytes

Hi Everyone,

I am new to OpenFoam and CFDEM. I have been trying to install CFDEM and I am stuck in activating the new bashrc file. After I execute this:

#- set the cfdem environment variables correctly
gedit $WM_PROJECT_INST_DIR/$USER-$WM_PROJECT_VERSION/src/lagrangian/cfdemParticle/etc/bashrc &

Should I paste the contents in the bashrc file in home directory or just activate the bashrc using command . ~/.bashrc?

I tried both, and I find this in my bashrc file:

#- source OpenFOAM-1.7.x
. $HOME/OpenFOAM/OpenFOAM-1.7.x/etc/bashrc
#- enable parallel compiling

HI,

I am wondering whethere there is any info on CFD-LB shown on this web site.

Thanks!

Pei-Ying

Hi, I'm trying to compile CFDEM under Tuquito 5 x64

i've installed succesfully OpenFOAM 2.1 and ThirdParty 2.1, and ligggths
but when i'm compiling CFDEM 2.0 beta according to system/files/setup_LIGGGHTS__OpenFoamR_CFDEM_2p0_on_Ubuntu1004_24052011.txt

these error occur

/usr/bin/ld: cannot find -llmp_fedora
collect2: ld returned 1 exit status
make: *** [/home/geronimo/OpenFOAM/geronimo-2.1.0/platforms/linux64GccDPOpt/lib/liblagrangianCFDEM_shared.so] Error 1

Hello all,

I'm interested to simulate a 3d system composed of a sheet of granular particles and a gas jet upon it in variable angles relative to the horizontal sheet. The velocity of the jet should be supersonic. Now, I've seen the test case video of coupled CFDEM of the partly fluidized bed, which is similar to what I want to do, though I don't know if it suits modelling of high velocity jets with different orientations of the jet source.

Is it possible to use LIGGGHTS to simulate this system ? How complicated should that be with the current version of LIGGGHTS ?