CFDEM®coupling - User Forum

Hi All,

I went through the CFDEM coupling pdf guide, and I followed the instructions in an attempt to compile LIGGGHTS(R) and CFDEM(R) compiling. However, prior to that the "cfdemSysTest" command didn't work, instead the following message pops up:

If 'cfdemSysTest' is not a typo you can run the following command to lookup the package that contains the binary:
command-not-found cfdemSysTest
-bash: cfdemSysTest: command not found

I have OpenFoam 2.3.x. installed, and the latest cfdem package straight from github.

Hello Dear users
Good time.
I am a new user of CFDEM project. I am going to use CFDEM for simulation of sediment transport.
I have some questions. Please help me.

- What is the CFDEM solver for simulation of sediment transport?
- Can I use one of the exiting examples in CFDEM tutorial and change it?
- How do I mesh in CFD and DEM sections? Does the site contain particles is defined and mesh is given in CFD section? OR does the site contain fluid is defined and mesh is given in DEM section?
- How do I select the number of particles in DEM?

Hello all,

I am trying to write a new solver to include solid reaction, so I wrote a new force model by changing the model for convection and I modified the solver cfdemPisoScalar to include 3 species, the effect the thermal diffusivity change in the temperature scalar equation, and a rotating frame of reference. here the equations

Hi,

I have problems compiling CFDEM. The solution to a similar problem (http://www.cfdem.com/forums/update-cfdem-251-compile-error) did not help.
The first error of this kind happens at the end of the submodel compilation.

Hei,

Hi, there

When I ran my own case manually, I encountered errors as follows,
1. can you please check it and help me fix it?
2. CFDEMcoupling allows a multi-phase property definition in OpenFOAM?, e.g., air and water phases?

many thanks in advance!

Yin
---------------------------------------

Hi all,

Hi,
recently, i have tried to update my CFDEM to 2.7.1 and LIGGGHTS to 3.0.2 (OF still stay on 2.1.0, which is enough for me)
i noticed some messages during compiling, which i never noticed before.

Hi
when I try ro run CFDEM case, A error happened in the cfdemPostproc case/fillCylinder. Information is below
*** Error in `cfdemPostproc': free(): invalid next size (fast): 0x0c103a70 ***

trying to start paraview...

There is no problem for other cases , any help?

Hello Everybody,

I need to know how to couple time step between liggghts and CFD? I modified deltaT in OpenFoam but I got the error "TS is too big for coupling".

Regards,

Carlos