[hewei]

Dear all,

I am trying to run a channel LES simulation. The channel mesh is generated by gmsh. the front and back are defined as periodic BCs. First I define the cyclic directly in boundary file, but the output shows wrong, as you can see the result.

Then I created the cyclic boundary using createPatch, and I have a new boundary file. However the results still not periodic. I am using v2112.

Thanks!

hewei

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2112 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
arch "LSB;label=32;scalar=64";
class polyBoundaryMesh;
location "0.01/polyMesh";
object boundary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

5
(
inlet
{
type patch;
physicalType patch;
nFaces 120;
startFace 15090;
}
topAndBottom
{
type patch;
physicalType patch;
nFaces 900;
startFace 15210;
}
outlet
{
type patch;
physicalType patch;
nFaces 120;
startFace 16110;
}
front
{
type cyclic;
inGroups 1(cyclic);
nFaces 540;
startFace 16230;
matchTolerance 0.001;
transform unknown;
neighbourPatch back;
}
back
{
type cyclic;
inGroups 1(cyclic);
nFaces 540;
startFace 16770;
matchTolerance 0.001;
transform unknown;
neighbourPatch front;
}
)

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