| Counterdoc |
April 10, 2024 04:36 |
checkMesh error after reconstructParMesh
Hello,
I run into some errors when running checkMesh after using reconstructParMesh. I also ran checkMesh before reconstructParMesh and it finished fine without any errors.
I am not sure how to fix that now?
Here are the two checkMesh results.
Before reconstructParMesh:
Code:
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2312 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _c39a0f64-20231220 OPENFOAM=2312 version=2312
Arch : "LSB;label=32;scalar=64"
Exec : checkMesh -allGeometry -allTopology
Date : Apr 10 2024
Time : 01:36:00
Host : f47623f43039
PID : 1459
I/O : uncollated
Case : /home/openfoam/CFD-Openfoam/Clio2024-2
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
Check mesh...
Enabling all (cell, face, edge, point) topology checks.
Enabling all geometry checks.
Time = 0
Mesh stats
points: 5526661
faces: 16326000
internal faces: 16074000
cells: 5400000
faces per cell: 6
boundary patches: 5
point zones: 0
face zones: 0
cell zones: 0
Overall number of cells of each type:
hexahedra: 5400000
prisms: 0
wedges: 0
pyramids: 0
tet wedges: 0
tetrahedra: 0
polyhedra: 0
Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Topological cell zip-up check OK.
Face-face connectivity OK.
Number of regions: 1 (OK).
Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology Bounding box
frontAndBack 36000 36722 ok (non-closed singly connected) (-15 -5 -1) (30 5 3)
inlet 18000 18361 ok (non-closed singly connected) (-15 -5 -1) (-15 5 3)
outlet 18000 18361 ok (non-closed singly connected) (30 -5 -1) (30 5 3)
lowerWall 90000 90601 ok (non-closed singly connected) (-15 -5 -1) (30 5 -1)
upperWall 90000 90601 ok (non-closed singly connected) (-15 -5 3) (30 5 3)
".*" 252000 252002 ok (closed singly connected) (-15 -5 -1) (30 5 3)
Checking faceZone topology for multiply connected surfaces...
No faceZones found.
Checking basic cellZone addressing...
No cellZones found.
Checking basic pointZone addressing...
No pointZones found.
Checking geometry...
Overall domain bounding box (-15 -5 -1) (30 5 3)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (1.93603e-18 1.01851e-15 -2.88777e-16) OK.
Max cell openness = 3.90313e-16 OK.
Max aspect ratio = 4.5 OK.
Minimum face area = 0.00222222. Maximum face area = 0.01. Face area magnitudes OK.
Min volume = 0.000333333. Max volume = 0.000333333. Total volume = 1800. Cell volumes OK.
Mesh non-orthogonality Max: 0 average: 0
Non-orthogonality check OK.
Face pyramids OK.
Max skewness = 5.47788e-13 OK.
Coupled point location match (average 0) OK.
Face tets OK.
Min/max edge length = 0.0333333 0.15 OK.
All angles in faces OK.
Face flatness (1 = flat, 0 = butterfly) : min = 1 average = 1
All face flatness OK.
Cell determinant (wellposedness) : minimum: 0.0310652 average: 0.33736
Cell determinant check OK.
Concave cell check OK.
Face interpolation weight : minimum: 0.5 average: 0.5
Face interpolation weight check OK.
Face volume ratio : minimum: 1 average: 1
Face volume ratio check OK.
Mesh OK.
End
After running reconstructParMesh:
Code:
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2312 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : _c39a0f64-20231220 OPENFOAM=2312 version=2312
Arch : "LSB;label=32;scalar=64"
Exec : checkMesh -allGeometry -allTopology
Date : Apr 10 2024
Time : 06:25:19
Host : f47623f43039
PID : 1469
I/O : uncollated
Case : /home/openfoam/CFD-Openfoam/Clio2024-2
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
Check mesh...
Enabling all (cell, face, edge, point) topology checks.
Enabling all geometry checks.
Time = 0
Mesh stats
points: 20974724
faces: 53927464
internal faces: 50311460
cells: 16639761
faces per cell: 6.26445
boundary patches: 6
point zones: 1
face zones: 0
cell zones: 0
Overall number of cells of each type:
hexahedra: 13399550
prisms: 645551
wedges: 1
pyramids: 0
tet wedges: 16833
tetrahedra: 292
polyhedra: 2577534
Breakdown of polyhedra by number of faces:
faces number of cells
4 112810
5 157031
6 529654
7 472431
8 127210
9 834428
10 11929
11 10512
12 259655
13 1148
14 2265
15 50933
16 133
17 353
18 6973
19 2
20 4
21 63
Checking topology...
Boundary definition OK.
Cell to face addressing OK.
Point usage OK.
Upper triangular ordering OK.
Face vertices OK.
Topological cell zip-up check OK.
<<Number of duplicate (not baffle) faces found: 40. This might indicate a problem.
<<Number of faces with non-consecutive shared points: 77. This might indicate a problem.
<<Writing 194 faces with non-standard edge connectivity to set edgeFaces
<<Writing 1 cells with two non-boundary faces to set twoInternalFacesCells
Number of regions: 1 (OK).
Checking patch topology for multiply connected surfaces...
Patch Faces Points Surface topology Bounding box
frontAndBack 36000 36722 ok (non-closed singly connected) (-15 -5 -1) (30 5 3)
inlet 18000 18361 ok (non-closed singly connected) (-15 -5 -1) (-15 5 3)
outlet 18000 18361 ok (non-closed singly connected) (30 -5 -1) (30 5 3)
lowerWall 90000 90601 ok (non-closed singly connected) (-15 -5 -1) (30 5 -1)
upperWall 90000 90601 ok (non-closed singly connected) (-15 -5 3) (30 5 3)
clio3rs 3364004 3700790 multiply connected (shared edge) (-0.862136 -0.88747 -4.8231e-05) (3.31436 0.888929 1.47039)
".*" 3616004 3952792 multiply connected (shared edge) (-15 -5 -1) (30 5 3)
Detected 1 bad edges (possibly relevant for finite-area)
Checking faceZone topology for multiply connected surfaces...
No faceZones found.
<<Writing 2 conflicting points to set nonManifoldPoints
Checking basic cellZone addressing...
No cellZones found.
Checking basic pointZone addressing...
PointZone PointsBoundingBox
frozenPoints 0(1e+150 1e+150 1e+150) (-1e+150 -1e+150 -1e+150)
Checking geometry...
Overall domain bounding box (-15 -5 -1) (30 5 3)
Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
Mesh has 3 solution (non-empty) directions (1 1 1)
Boundary openness (1.97747e-16 -1.47266e-15 -9.93147e-15) OK.
Max cell openness = 1.609e-15 OK.
Max aspect ratio = 189.935 OK.
Minimum face area = 1.2264e-09. Maximum face area = 0.0105787. Face area magnitudes OK.
Min volume = 1.64322e-11. Max volume = 0.000359184. Total volume = 1794.95. Cell volumes OK.
Mesh non-orthogonality Max: 82.0127 average: 16.2043
*Number of severely non-orthogonal (> 70 degrees) faces: 88.
Non-orthogonality check OK.
<<Writing 88 non-orthogonal faces to set nonOrthoFaces
Face pyramids OK.
***Max skewness = 16.9642, 3434 highly skew faces detected which may impair the quality of the results
<<Writing 3434 skew faces to set skewFaces
Coupled point location match (average 0) OK.
***Error in face tets: 11 faces with low quality or negative volume decomposition tets.
<<Writing 11 faces with low quality or negative volume decomposition tets to set lowQualityTetFaces
*Edges too small, min/max edge length = 3.01501e-07 0.155124, number too small: 2065
<<Writing 2065 points on short edges to set shortEdges
*There are 327518 faces with concave angles between consecutive edges. Max concave angle = 89.5995 degrees.
<<Writing 327518 faces with concave angles to set concaveFaces
Face flatness (1 = flat, 0 = butterfly) : min = 0.121865 average = 0.998712
*There are 26447 faces with ratio between projected and actual area < 0.8
Minimum ratio (minimum flatness, maximum warpage) = 0.121865
<<Writing 26447 warped faces to set warpedFaces
Cell determinant (wellposedness) : minimum: 2.68592e-18 average: 0.570997
***Cells with small determinant (< 0.001) found, number of cells: 21487
<<Writing 21487 under-determined cells to set underdeterminedCells
***Concave cells (using face planes) found, number of cells: 1451494
<<Writing 1451494 concave cells to set concaveCells
Face interpolation weight : minimum: 0.00616374 average: 0.45225
***Faces with small interpolation weight (< 0.05) found, number of faces: 32023
<<Writing 32023 faces with low interpolation weights to set lowWeightFaces
Face volume ratio : minimum: 0.00284747 average: 0.798579
***Faces with small volume ratio (< 0.01) found, number of faces: 62
<<Writing 62 faces with low volume ratio cells to set lowVolRatioFaces
Failed 6 mesh checks.
End
Should I run snappyHexMesh without decomposePar? But that would take forever... Any help or idea is really appreciated!
Thanks.
Marius |
