[HumanistEngineer]

Hi,

I try to model the temperature transients for a sensible stratified heat storage tank by use of OpenFoam (see for details: cfd - online: Sensible Stratified Storage Tank).

In order to generate mesh for axisymmetric geometry: I formed a 2D face which was later converted to a solid by applying revolution with 2.5 deg (around axis z) in Salome_Meca 2022.0.0. I built groups as with inlet, outlet, walls, diffuser (obstacle for flow at the inlet and outlet), and wedge_1 and wedge_2 (see the code text given at the bottom for the /constant/polyMesh/boundary). I generated the mesh with various approaches (i.e. by use of GMSH (built-in in Salome Meca), NETGEN) for trial purposes. I, then, export the mesh as Unv file from Salome Meca.

Then I use the code in the Ubuntu Terminal "ideasUnvToFoam" and checked the mesh via "checkMesh". Everything is fine until here!

Whenever I try to run my code via "buoyantFoam", I receive an error given below. Would you please help me to overcome this issue?

--> FOAM FATAL ERROR: 
wedge wedge_1 plane aligns with a coordinate plane.
    The wedge plane should make a small angle (~2.5deg) with the coordinate plane
    and the pair of wedge planes should be symmetric about the coordinate plane.
    Normal of wedge plane is (0 -1 0) , implied coordinate plane direction is (0 -1 0)

    From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBuffers&)
    in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 110.

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  10
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    format      ascii;
    class       polyBoundaryMesh;
    location    "constant/polyMesh";
    object      boundary;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

6
(
    inlet
    {
        type            patch;
        nFaces          9;
        startFace       191196;
    }
    outlet
    {
        type            patch;
        nFaces          9;
        startFace       191205;
    }
    walls
    {
        type            wall;
        nFaces          1476;
        startFace       191214;
    }
    diffuser
    {
        type            empty;
        nFaces          846;
        startFace       192690;
    }
    wedge_1
    {
        type            wedge;
        nFaces          16854;
        startFace       193536;
    }
    wedge_2
    {
        type            wedge;
        nFaces          16854;
        startFace       210390;
    }
)

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

[HumanistEngineer]

The tar file for this OpenFoam case can be downloaded from: https://www.mediafire.com/file/9qwpw...ym.tar.gz/file

[HumanistEngineer]

I solved the problem after watching some tutorials: if you have the same issue, you have to apply revolution (Salome Meca - New Entity \ Generation \ Revolution) with 2.5 deg for both directions so, as stated in the error, both of the wedges shall be symmetric about the coordinate plane!