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boundary Cyclic 3D

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Old   July 20, 2022, 10:35
Default boundary Cyclic 3D
  #1
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Boucetta Lahcene
Join Date: Feb 2022
Location: Paris
Posts: 22
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Hello everyone

I want to make a 3D simulation of airfoil, I made the gonometry with Isis-cfd.

I changed in boundary the name of patch in cyclic and also in file 0, but it displays me an error.

Do you have a tip to unblock this bug please. Thanks a lot

This is the error:

[100] --> FOAM FATAL ERROR: (openfoam-2106)
[100] face 0 area does not match neighbour by 192.6987% -- possible face ordering problem.
patchrocBoundary100to15throughZmax my area:5.721409e-07 neighbour area:1.063766e-08 matching tolera
nce:9.255939e-11
Mesh face:252543 vertices:4((0.3441662 0.1384074 4) (0.3460498 0.138489 4) (0.3460351 0.1387911 4) (0
.3441423 0.1387097 4))
If you are certain your matching is correct you can increase the 'matchTolerance' setting in the patc
h dictionary in the boundary file.
Rerun with processor debug flag set for more informatio


boudery.PNG


CheckMesh:

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2112 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _d44c8318-20220111 OPENFOAM=2112 version=2112
Arch : "LSB;label=32;scalar=64"
Exec : checkMesh
Date : Jul 20 2022
Time : 15:23:03
Host : cfduser-VM
PID : 12951
I/O : uncollated
Case : /home/cfd-user/Downloads/Cluster/3D_SST
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

Time = 0

Mesh stats
points: 12568203
faces: 37055539
internal faces: 36637101
cells: 12244720
faces per cell: 6.01832
boundary patches: 8
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 12031680
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 213040
Breakdown of polyhedra by number of faces:
faces number of cells
7 201760
8 11280

Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology
Zmin 153059 155163 ok (non-closed singly connected)
Zmax 153059 155163 ok (non-closed singly connected)
Intrados 46960 47628 ok (non-closed singly connected)
Extrados 52560 53298 ok (non-closed singly connected)
Inlet 3200 3321 ok (non-closed singly connected)
Ymax 3200 3321 ok (non-closed singly connected)
Outlet 3200 3321 ok (non-closed singly connected)
Ymin 3200 3321 ok (non-closed singly connected)

Checking faceZone topology for multiply connected surfaces...
No faceZones found.

Checking basic cellZone addressing...
No cellZones found.

Checking geometry...
Overall domain bounding box (-40 -40 0) (40 40 4)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (1.827013e-17 -2.633984e-17 8.461201e-13) OK.
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Old   August 10, 2022, 06:59
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Quote:
Originally Posted by B6_lacen View Post
Hello everyone

I want to make a 3D simulation of airfoil, I made the gonometry with Isis-cfd.

I changed in boundary the name of patch in cyclic and also in file 0, but it displays me an error.

Do you have a tip to unblock this bug please. Thanks a lot

This is the error:

[100] --> FOAM FATAL ERROR: (openfoam-2106)
[100] face 0 area does not match neighbour by 192.6987% -- possible face ordering problem.
patchrocBoundary100to15throughZmax my area:5.721409e-07 neighbour area:1.063766e-08 matching tolera
nce:9.255939e-11
Mesh face:252543 vertices:4((0.3441662 0.1384074 4) (0.3460498 0.138489 4) (0.3460351 0.1387911 4) (0
.3441423 0.1387097 4))
If you are certain your matching is correct you can increase the 'matchTolerance' setting in the patc
h dictionary in the boundary file.
Rerun with processor debug flag set for more informatio


Attachment 90836


CheckMesh:

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2112 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _d44c8318-20220111 OPENFOAM=2112 version=2112
Arch : "LSB;label=32;scalar=64"
Exec : checkMesh
Date : Jul 20 2022
Time : 15:23:03
Host : cfduser-VM
PID : 12951
I/O : uncollated
Case : /home/cfd-user/Downloads/Cluster/3D_SST
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

Time = 0

Mesh stats
points: 12568203
faces: 37055539
internal faces: 36637101
cells: 12244720
faces per cell: 6.01832
boundary patches: 8
point zones: 0
face zones: 0
cell zones: 0

Overall number of cells of each type:
hexahedra: 12031680
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 213040
Breakdown of polyhedra by number of faces:
faces number of cells
7 201760
8 11280

Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology
Zmin 153059 155163 ok (non-closed singly connected)
Zmax 153059 155163 ok (non-closed singly connected)
Intrados 46960 47628 ok (non-closed singly connected)
Extrados 52560 53298 ok (non-closed singly connected)
Inlet 3200 3321 ok (non-closed singly connected)
Ymax 3200 3321 ok (non-closed singly connected)
Outlet 3200 3321 ok (non-closed singly connected)
Ymin 3200 3321 ok (non-closed singly connected)

Checking faceZone topology for multiply connected surfaces...
No faceZones found.

Checking basic cellZone addressing...
No cellZones found.

Checking geometry...
Overall domain bounding box (-40 -40 0) (40 40 4)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (1.827013e-17 -2.633984e-17 8.461201e-13) OK.
have you checked your result, is it periodic? thanks
hewei is offline   Reply With Quote

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