CFDEM®coupling - User Forum

Hi all, Hi Christoph,

I am trying to install these two mentioned above software in UBUNTU14.04. Please help me to answer the followings question
1) For Liggghts.
- should i run "make fedora" after "make clean-all" as the instruction in the following link
http://www.cfdem.com/installation-tutorial

Hi guys,

I am going to simulate a number of lagrangian bubbles in eulerian continuum fluid phase using CFDEM-LIGGGHTS-OPENFOAM. I have installed CFDEMProject with LIGGGHTS and OpenFOAM-Paraview.

Can anyone help me by telling is that possible or not and if it is possible, which solvers in CFDEM i should use. And how should i proceed step-by step to do the simulation.
If openfoam can do this, please tell which solver and files in openfoam can do that.

Hello Everyone, I am attempting here to outline a step by step CFDEM installation procedure that worked for me. Kindly, help improve the same by suggestions and contributions.

Hello everybody,

I compiled OF 3.0.1 and LIGGGHTS 3.3.1 to CFDEM with the additional libs. The compilation went fine.
The problem is that every solver always gets an error either with RAS or laminar as "simulationType", while pisoFoam runs correctly on it's own:

[...]
Selecting incompressible transport model Newtonian
Selecting turbulence model type laminar

Could you please explain or give reference to the idea of suppressing ddt(voidfraction)?
What influence does it have when it is on / off.

Thanks,
Jakub

Dear all,
does anyone work on DEM-CFD coulpling using multisphere approach in the public release?
The serial multisphere approach is available in the public release. thanks.
Zyan

Dear All,

I am using cfdemsolverpiso and including virtual mass force in the forcemodel. I found that simulation can't start without "phiFieldName "phi"" entry being included in the virtualMassForceProps which is not mentioned in the manual.

Another error "LIGGGHTS could not find property UrelOld to write data from calling program to." occured during the simulation. I just used the tutorial case, so I think there might be no problem with the case setting. I don't have any clue about this, any help please?

Kind regards,
Linhan

Hello,

I'm trying to reconstruct cases described in article: "Simulation of Sedimentation of a Sphere in a Viscous Fluid Using the Lattice Boltzmann Method Combined with the Smoothed Profile Method" by Suresh Alapati, Woo Seong Che, and Yong Kweon Suh, and here A. ten Cate, C. H. Nieuwstad, J. J. Derksen, and H. E. A. van den Akker, “Particle imaging velocimetry experiments and lattice-Botlzmann simulations on a single sphere settling under gravity,” Physics of Fluids, vol. 14, no. 11, pp. 4012–4025, 2002.

i hav inserted particles of size 100 micron into a container (taken as servo wall). I need to know the container wall stresses from paraview. What syntax i hav to add to the script? the script file and stl are attached..

Hello all,

I want to restart my simulations since the cluster I use does not permit to run beyond certain walltime.

I configured the case according to ErgunTestMPI_restart.
However, when I restart the simulations, all the files in processor* dirs are cleaned.
Of course, than it complains about not finding p in the latest time dir.

How can I prevent the clean up before the simulation starts?

Thanks.

regards,
Vinay