[Voulet]

Hi.

I'm following this tutorial of our famous Håkan Nilsson http://www.tfd.chalmers.se/~hani/kur...iclesInVOF.pdf in order to follow some solid particles in the DamBreakCase.
The code was written for the OF19 when I use OF 8. Reproducing this tutorial step by step leads to a converging solution but the positions of the particles are not written in the solution. I guess it's because it comes from the difference between the ESI 19 OF version and the foundation 8 OF.

I would like to be able to read the source documentation and understand which files are mandatory or not. It will be helpull through my journey to openfoam experience.
So let's start :

I've to add in the main file of my solver (for the preprocessing) the class from solidParticleCloud.H thus : #include "solidParticleCloud.H"
Next, i've to create an solidParticleCloud object called particles with:
solidParticleCloud particles(mesh)
I also add the

particles.move(g);

line at nearly the end of my solver, before the runTime.write();
Looking at the documentation solidParticleCloud.H I see that an IOdictionary is needed, from the class template Cloud

 class solidParticleCloud
 :
     public Cloud<solidParticle>
 {
     // Private Data
 
         const fvMesh& mesh_;
 
         IOdictionary particleProperties_;
 
         scalar rhop_;
         scalar e_;
         scalar mu_;

Looking at the .C part i see :

  Foam::solidParticleCloud::solidParticleCloud
 (
     const fvMesh& mesh,
     const word& cloudName,
     bool readFields
 )
 :
     Cloud<solidParticle>(mesh, cloudName, false),
     mesh_(mesh),
     particleProperties_
     (
         IOobject
         (
             "particleProperties",
             mesh_.time().constant(),
             mesh_,
             IOobject::MUST_READ_IF_MODIFIED,
             IOobject::NO_WRITE
         )
     ),
     rhop_(dimensionedScalar(particleProperties_.lookup("rhop")).value()),
     e_(dimensionedScalar(particleProperties_.lookup("e")).value()),
     mu_(dimensionedScalar(particleProperties_.lookup("mu")).value())
 {
     if (readFields)
     {
         solidParticle::readFields(*this);
     }
 }

and thus i guess that the particleProperties dictionnaries will be in case/constant/particleProperties and containing dimensioned Scalar.

FoamFile
{
     version     2.0;
     format      ascii;
     class       dictionary;
     object      particleProperties;
}
//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *//
rhop rhop [ 1 -3  0  0  0  0  0] 1000;
e    e    [ 0  0  0  0  0  0  0] 0.8;
mu   mu   [ 0  0  0  0  0  0  0] 0.2;
//*************************************************************************//

Modifing the solver adding this file make my modified BreakDam to run fine. The positions and the size of the particules were not precised in my case since i don't see in the source codes wich part tells me to add them.


Could you please help me finding the clues in the source documentation to help me finding wich files are necessary ?


Since the solidParticleCloud class derive from the Cloud class I see in the file another class IOPosition that may help me to define the initial position of my particule but reading it with my few knowledges it doesn't help me to understand which and where i've to put some dictionnaries.


Thanks for your help. I hope to get more and more familiar with Open Foam.