[quarkz]

Hi, I have questions about using the RBFMeshMotionSolver in solids4Foam. I’m using pimpleFoam. I’ve read quite a few discussions on using the RBFMeshMotionSolver from solid4Foam with pimpleFoam.
I am interested to use RBFMeshMotionSolver to replace the laplacian solver for prescribed mesh deformation in OF with 6DOF simulation.
I tried to start off with the fluid-openfoam-rbf.zip from https://github.com/precice/openfoam-...sue-1333146912
I have installed preCICE and solid4Foam.
I ran it and it completes with no error. However, when I view the case in paraview, the flap is stationary, there is no motion or deformation. Is this supposed to be so?

Next I tried to replace the laplacian withe rbf in a modified OF wingMotion tutorial. I prescribed a rotation to the airfoil. It completes without error but at the start, it seems to hang and it’s doing some initial calculation. When I view the results, similarly there’s no motion or mesh deformation.

I have attached the dynamicMeshDict and pointdisplacement. Did I do something wrong?

FoamFile
{
    version     2.0;
    format      ascii;
    class       pointVectorField;
    location    "0.01";
    object      pointDisplacement;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 1 0 0 0 0 0];

internalField   uniform (0 0 0);

boundaryField
{
    wing
    {
        type            calculated;
        value           uniform (0 0 0);
    }

    front
    {
        type            empty;
    }

    back
    {
        type            empty;
    }

    ".*"
    {
        type            fixedValue;
        value           uniform (0 0 0);
    }
	
	/*airfoil
    {
        
        type        solidBodyMotionDisplacement;
        solidBodyMotionFunction  oscillatingRotatingMotion;
        oscillatingRotatingMotionCoeffs
        {
           origin (0.25 0.007 0.125);
           //axis        (0 0 1);
           amplitude       (0.0 0.0 10);  //units of deg
		   omega           0.698;       //units of rad/s
        }
    }*/
	
	wing
    {
    type        angularOscillatingDisplacement;
    value           uniform (0 0 0);
	axis        (0 0 1);
	origin (0.25 0.007 0.125);
	angle0		 0;
	amplitude       1.31;//0.7854;  //units of rad
	omega           6.28;//1.571;//3.1415926535897932384625;       //units of rad/s
    //value           $internalField;
  
    }
}


// ************************************************************************* //

FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      dynamicMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dynamicFvMesh      dynamicMotionSolverFvMesh;

motionSolverLibs ("libfvMotionSolvers.so" "libRBFMeshMotionSolver.so");

// Radial basis function solver
solver RBFMeshMotionSolver;

RBFMeshMotionSolverCoeffs
{
    // Settings for the RBF solver
    staticPatches    (front back);
    movingPatches    (wing);
    fixedPatches     (inlet outlet topAndBottom);
    interpolation
    {
        function     TPS;
    }
    coarsening
    {
        enabled      no;
    }
}


// ************************************************************************* //