[BSengupta]

Hi! Foamers,


I am trying to run overlapGgi and getting the error as:
--> FOAM FATAL ERROR:
Found uncovered faces for GGI interface innercylinder/outercylinder
This is an unrecoverable error. Aborting.


boundary
blade_1
{
type wall;
nFaces 46561;
startFace 5183059;
}
blade_2
{
type wall;
nFaces 39728;
startFace 5229620;
}
innercylinder
{
type overlapGgi;
nFaces 41878;
startFace 5269348;
rotationAxis (0 0 1);
nCopies 30;
shadowPatch outercylinder;
zone innercylinder_faces;
}
outercylinder
{
type overlapGgi;
nFaces 41880;
startFace 5326982;
rotationAxis (0 0 1);
nCopies 30;
shadowPatch innercylinder;
zone outercylinder_faces;
}
farfield
{
type patch;
nFaces 15756;
startFace 5311226;
}


setBatch


faceSet innercylinder_faces new patchToFace innercylinder
faceSet outercylinder_faces new patchToFace outercylinder
cellSet rotor new cellToCell cellRegion0
quit




dynamicMeshDict

dynamicFvMeshLib "libtopoChangerFvMesh.so";
dynamicFvMesh turboFvMesh;//mixerGgiFvMesh;

turboFvMeshCoeffs//mixerGgiFvMeshCoeffs
{
coordinateSystem
{
type cylindrical;
origin (0 0 0);
axis (0 0 1);
direction (1 0 0);
}

rpm
{
cellRegion0 360;
cellRegion1 0.0;
}

slider
{
insidecylinder_faces 360;
}

}


MRFZones
cellRegion0//rotor
{
nonRotatingPatches (farfield);

origin origin [0 1 0 0 0 0 0] (0 0 0);
axis axis [0 0 0 0 0 0 0] (0 0 1);
omega omega [0 0 -1 0 0 0 0] 360;
}




Command
regionCellSets
setSet -batch setBatch
setsToZones -noFlipMap
solverName


Can any one tell me how to resolve this error.


The figure shows blade1, blade2 and innercylinder.



Thanks a lot.

[BSengupta]

any answer please

[BSengupta]

I solved the issue using ggi instead of overlapGgi.


The sample is given below:


cylr
{
type ggi;
nFaces 1656;
startFace 9801445;
rotationAxis (0 0 1);
nCopies 30;
shadowPatch cyls;
zone cylr_faces;
bridgeOverlap true; //This was also important.
}


cyls
{
type ggi;
nFaces 1656;
startFace 9829183;
rotationAxis (0 0 1);
nCopies 30;
shadowPatch cylr;
zone cyls_faces;
bridgeOverlap true;
}


Thank you.
Bidesh