[saeed jamshidi]

Hi there,
I want to simulate flow over cylinder in openfoam, so i have faced with error along using snappyHexMesh. I have attached my procedures as well as snappyhexmesh code. please helpe me at this matter.
Thank you.


******************************
myfoam@DESKTOP-TK3D7CI:~$ cd OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D
myfoam@DESKTOP-TK3D7CI:~/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D$ blockMesh
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2112 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _6e1fca0e-20220610 OPENFOAM=2112 patch=220610 version=2112
Arch : "LSB;label=32;scalar=64"
Exec : blockMesh
Date : Aug 09 2023
Time : 11:35:59
Host : DESKTOP-TK3D7CI
PID : 1293
I/O : uncollated
Case : /home/myfoam/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Creating block mesh from "system/blockMeshDict"
Creating block edges
No non-planar block faces defined
Creating topology blocks

Creating topology patches - from boundary section

Creating block mesh topology
--> FOAM Warning :
From void Foam::polyMesh::setTopology(const cellShapeList&, const faceListList&, const wordList&, Foam::labelList&, Foam::labelList&, Foam::label&, Foam::label&, Foam::cellList&)
in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 369
Trying to specify a boundary face 4(0 4 5 1) on the face on cell 0 which is either an internal face or already belongs to some other patch. This is face 0 of patch 5 named bottom.

Check topology

Basic statistics
Number of internal faces : 0
Number of boundary faces : 7
Number of defined boundary faces : 7
Number of undefined boundary faces : 0
Checking patch -> block consistency

Creating block offsets
Creating merge list (topological search)...
Deleting polyMesh directory "constant/polyMesh"

Creating polyMesh from blockMesh
Creating patches
Creating cells
Creating points with scale (1 1 1)
Block 0 cell size :
i : 0.03645899863251528 .. 0.04375079835901829
j : 0.02734424897438648 .. 0.03281309876926375
k : 0.6 .. 0.6

--> FOAM Warning :
From void Foam::polyMesh::setTopology(const cellShapeList&, const faceListList&, const wordList&, Foam::labelList&, Foam::labelList&, Foam::label&, Foam::label&, Foam::cellList&)
in file meshes/polyMesh/polyMeshFromShapeMesh.C at line 369
Trying to specify a boundary face 4(0 1 442 441) on the face on cell 0 which is either an internal face or already belongs to some other patch. This is face 0 of patch 5 named bottom.

There are no merge patch pairs

Writing polyMesh with 0 cellZones
----------------
Mesh Information
----------------
boundingBox: (-0.2 -0.3 -0.3000000000000001) (0.6000000000000001 0.3 0.3000000000000001)
nPoints: 882
nCells: 400
nFaces: 1660
nInternalFaces: 760
----------------
Patches
----------------
patch 0 (start: 760 size: 20) name: inlet
patch 1 (start: 780 size: 20) name: outlet
patch 2 (start: 800 size: 20) name: cylinder
patch 3 (start: 820 size: 800) name: frontAndBack
patch 4 (start: 1620 size: 20) name: top
patch 5 (start: 1640 size: 20) name: bottom

End

myfoam@DESKTOP-TK3D7CI:~/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D$ snappyHexMesh
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2112 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _6e1fca0e-20220610 OPENFOAM=2112 patch=220610 version=2112
Arch : "LSB;label=32;scalar=64"
Exec : snappyHexMesh
Date : Aug 09 2023
Time : 11:36:08
Host : DESKTOP-TK3D7CI
PID : 1294
I/O : uncollated
Case : /home/myfoam/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Read mesh in = 0 s

Overall mesh bounding box : (-0.2 -0.3 -0.3000000000000001) (0.6000000000000001 0.3 0.3000000000000001)
Relative tolerance : 1e-06
Absolute matching distance : 1.16619037896906e-06

Reading refinement surfaces.
Read refinement surfaces in = 0 s

Reading refinement shells.
Read refinement shells in = 0 s

Setting refinement level of surface to be consistent with shells.
Checked shell refinement in = 0 s

Reading features.
Read features in = 0 s


Determining initial surface intersections
-----------------------------------------

Edge intersection testing:
Number of edges : 1660
Number of edges to retest : 0
Number of intersected edges : 0
Edge intersection testing:
Number of edges : 1660
Number of edges to retest : 1660
Number of intersected edges : 10
Calculated surface intersections in = 0 s

Initial mesh : cells:400 faces:1660 points:882
Cells per refinement level:
0 400


--> FOAM FATAL IO ERROR: (openfoam-2112 patch=220610)
Entry 'allowFreeStandingZoneFaces' not found in dictionary "/home/myfoam/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D/system/snappyHexMeshDict.castellatedMeshControls"


file: system/snappyHexMeshDict.castellatedMeshControls at line 37.

From bool Foam::dictionary::readEntry(const Foam::word&, T&, Foam::keyType::option, bool) const [with T = bool]
in file /usr/src/packages/BUILD/src/OpenFOAM/lnInclude/dictionaryTemplates.C at line 322.

FOAM exiting

myfoam@DESKTOP-TK3D7CI:~/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D$

[AtoHM]

Its missing the keyword as stated:

--> FOAM FATAL IO ERROR: (openfoam-2112 patch=220610)
Entry 'allowFreeStandingZoneFaces' not found in dictionary  "/home/myfoam/OpenFOAM-sims/tutorials/incompressible/pimpleFoam/laminar/cylinder2D/system/snappyHexMeshDict.castellatedMeshControls"

Look into a template to locate the keyword and add it in your snappyHexMeshDict.