CFDEM®coupling - User Forum

Hi all,

Just a quick question. Is BeetstraDrag implemented in the current CFDEM? I can see enrties in the couplingProperties file in the tutorial, but couldn't find the source code. Do I need to build it myself or it is hidden somewhere?

Cheers,
Linhan

Dear All,

I am following the installation of CFDEMcoupling v3.X from: https://www.cfdem.com/media/CFDEM/docu/CFDEMcoupling_Manual.html#.

When I type the command "cfdemSysTest", I get this message:

Hi CFDEM users,

I am looking for a solution to extract individual hydraulic forces, e.g., drag and viscous forces acting on particles when coupling. The current compute f_dragforce will result in the total fluid force.

Can anyone advise how to do this ?

Thanks,

Regards,

Hi everyone,

I am trying to run the CFDEM Tutorial tests after installing CFDEM with OpenFOAM-4.x and LIGGGHTS-3.6.0.

I followed the instructions for installing LIGGGHTS in the link below, because I was interested in using Voro++ with it:
https://www.cfdem.com/forums/tutorial-setup-liggghts-360-ubuntu-16x-mint...

Hi everyone,

Is CFDEM able to simulate the case when solids are continuously fed and removed from the domain? Like slurry transportation through a fluidized bed? I think the main problem here is the mass conservation of fluid flow field. Cyclic boundary might not be able to do the job since in my case slurry particles interact with fluidized medium and I need fresh slurry to be fed into the domain to keep a constant mass flow rate.

Best,
Linhan

Hi, I'm new in cfdem. but can compile and develop OpenFOAM code. I wanna create new solver like cfdemSolverPiso. do you have any tutorial about force and source term which we must add to pisoFOAm and create cfdemSolverPiso? my goal is add this source term and force between two phase flow and particle. at first I wanna develop pisoFOAM and create cfdemSolverPiso after that try to develop interFOAM and create cfdemSolverInterFoam.
plz help me to learn force and interaction between fluid and particle. thank you

Hello.
I'm not a new user of CFDEM, but I'm having huge problems about the installation of the last stable version (that I assume is the 3.6.0 such as LIGGGHTS and is optimized and tested with OpenFOAM 3.x).
Since the beginning I've used an ubuntu 12.04 virtual machine with the version 2.x installed (coupled with LIGGGHTS and OPENFOAM), but the slowness of that virtual machines now has become really disturbing.

Hallo everyone,

I have a question about fast compilation of LIGGGHTS and CFDEM. When I add some code to the LIGGGHTS src file, I can use "make fedora_fpic" and only the changes in the source code are compiled. I can now use the added code in LIGGGHTS simulation and it works fine. But when I want to use the CFDEM coupling, I have to recompile everything to use this added code (cfdemCompCFDEMall). Is there a smarter and faster way to recompile CFDEM?

Cheers

Johannes

Hi everybody,

I am having problems compiling CFDEM on an Ubuntu 14.04 virtual machine in a server.

- I installed and compiled OpenFOAM-3.0.x(commit from versionH) and LIGGGHTS. Both compiled without errors and I can execute examples for both of them. I compiled LIGGGHTS "on its own" without using the cfdemCompLIG command. The compilation of LIGGGHTS was done using the ubuntuVTK6 makefile. I also changed the $CFDEM_LIGGGHTS_MAKEFILE_NAME to ubuntuVTK6 since I think cfdem uses this field to look for a executable. I linked the VTK libraries where it was necessary.

Hi Developer,