[danvica]

Hi,
I'm trying to understand how to use dynamicTopoFvMesh library to simulate a free moving (6DoF) object into a fluid.

I'm following the circCylinder3d tutorial just to understand how to setup my case that will use pimpleDyMFoam and I've got lots of questions...
just a couple to start:

1. What is tetFemSolution ?

2. In dynamicMeshDict there are position constrains:

//- Constrain surface mesh-motion on a specified cylinder
    cylindricalConstraints
    {
        //- Specify options per slip patch
        sideWall
        {
            axisPoint      (0.0 0.0 0.0);
            axisVector     (0.0 0.0 1.0);
            radius          1.0;
        }
    }

    //- Specify fixedValue patches for the motionSolver
    fixedValuePatches
    {
        topWall
        {
            type          angularOscillatingDisplacement;
            amplitude     -0.0125;
            //type          oscillatingDisplacement;
            //amplitude     (0 0 -0.01);
            axis          (1 0 0);
            origin        (0 0 3);
            angle0        0.0;
            omega         0.15;
            value         uniform (0 0 0);
        }
    }

but what is then motionU file for ?

boundaryField
{
    bottomWall
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }

    sideWall
    {
        type            slip;
    }

    topWall
    {
        type            oscillatingFixedValue;
        refValue        uniform (0 0 0);
        amplitude       uniform (0 0 0.5);
        frequency       0.1;
        //type            fixedValue;
        //value           uniform (0 0 0.1);
    }

    outlet
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
}

3. The only type of motion constrain I found (in mesquiteOptions) are:
// angularOscillatingDisplacement
// angularOscillatingVelocity
// oscillatingDisplacement
// oscillatingVelocity
// surfaceDisplacement
// surfaceSlipDisplacement

Is there something similar to the following type ?

oggetto
    {
        type            sixDoFRigidBodyDisplacement;
        centreOfMass    (0 0 0.2);
        momentOfInertia (0.000001 0.000001 0.000001);
        mass            0.01;
        rhoName         rhoInf;
        rhoInf          1000;  // needed only for solvers solving for kinematic pressure
        report          on;
        value           uniform (0 0 0);
    }

I'm sorry if these question seems I little confused but I definitely need a starting point.

Thanks.