CFDEM®coupling - User Forum

Hallo CFDEM-community,

I have some rather tricky problems refering to the cfdemSoverIB method with two liquids.

For my master thesis I am trying to use the cfdemSolverIB approach (see the Glowinski tutorial) to simulate particles with a second fluid phase. The aim is something like the CFDEM Ergun tutorial (which is done „unresolved“ with one liquid phase) with a bed of particles and two liquids.

Hi guys
I have got an error by cfdemSys test related to the mpirun. Does anyone knows that how can I solve it?
here is the cfdemSysTest result:

Thank you in advane

bash-4.2$ cfdemSysTest

*********************************************
* C F D E M (R) c o u p l i n g *
* *
* by DCS Computing GmbH *
* www.dcs-computing.com *
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Hello All,

I am simulating a particle-fluid flow case using cfdemPisoSolver.

Hello,

I just tried to perform a calculation on the cluster.
I modified a script from an OpenFOAM job, but that didn't work.

call looks like:

bsub < file


in file, there are some settings and finally the call of the simulation:

$MPIEXEC $FLAGS_MPI_BATCH Allrun.sh


but this doesn't work

I also tried just to call:
Allrun.sh

The only thing that happens is the decomposePar of the case.
Any hints?

Thank's a lot
Henrik

Hello Everyone,

While compiling the CFDEM I am getting the following error message :

rm: cannot remove 'log/log_compile_results_src_success': No such file or directory
rm: cannot remove 'log/log_compile_results_src_fail': No such file or directory

Hi all,

I want to add a new drag model in CFDEMcoupling. and the steps I followed are:
1. create a new folder named with the model in .../subModels/forceModel, and copy .C and .H files to the folder.
2. Modify the files file in the Make-folder by including the new model following scheme of the already existing ones ($(forceModels)/myNewModel/myNewModel.C)
3.recompile with "wclean" and "wmake libso"
When I compile I get the next errors:

Hello All,

This is Min.

I am running two cases and the ONLY difference is they use different particle insertion approaches.

The simulation settings including both geometry and simulation parameters are almost the same as the one in this post:
https://www.cfdem.com/forums/cfdem-floating-point-exception-when-startin...

Also, the only difference is about the particle insertion.

Hello All,

I am simulating a particle-fluid flow case using cfdemPisoSolver.

My physical problem is like this.

The geometry is a cylinder (D1=6" and L=30cm) and there is a hole (D2=3/8") on the side of the cylinder.

Hello,

I'm working on the CFDEMcoupling and I'm using the cfdemIbSolver. I'm very much interested in the twoSpheresGlowinskiMPI tutorial. I want to be able to do this example and add a magnetic force to the particles. But for now i have just started with the basic example. I have succesfully run the tutorial but now I would like to change some things in the example.

Hi，everyone！
Now,i want to install CFDEM-coupling, but there is error.The version I compiled is OF-5.x + liggghts-3.8.0 + CFDEM-3.8.0.I followed the steps of the official website installation strictly,I made the following error while compiling "cfdemCompCFDEMsol". now i have no idea.who can help me ?Thanks for you help.
ace@114:~/Desktop$ cfdemCompCFDEMsol
rm: cannot remove ‘log/log_compile_results_sol_fail’: No such file or directory

This routine will compile the solvers specified in solver-list.txt