View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001229 | OpenFOAM | Bug | public | 2014-03-19 07:30 | 2014-03-20 09:58 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | feature | Reproducibility | always |
| Status | resolved | Resolution | unable to reproduce | ||
| Platform | Linux | OS | Cent OS 6.3 | OS Version | (please specify) |
| Summary | 0001229: Baffle creation does not work in snappyHexMeshDict (entry faceType baffle;) | ||||
| Description | Hello, this Feature http://www.openfoam.org/version2.2.0/snappyHexMesh.php Baffle and Boundary Creation (the entry faceType baffle; in snappyHexMeshDict) seems not to work with the Version Build : 2.3.x-f5bc84928a6d. With Build: 2.2.x-f9a78f7f7596 it works fine. You can test it maybe with the propeller tutorial. If I use version Build: 2.2.x-f9a78f7f7596 and make a checkMesh after meshing I get 2 Regions as I aspected. If I use Build : 2.3.x-f5bc84928a6d I get only 1 Region in checkMesh.log and I can’t also use the Workflow for generating AMI Faces as described in the propeller Tutorial. Here are some abstracts of my different snappyHexMesh log files... don’t compare the numbers they are different ... as you see 2.3.x seems to recognize the keyword faceType baffle; but I don’t get my two region mesh. Build : 2.2.x-f9a78f7f7596 Morphing phase -------------- Converting zoned faces into baffles ... For zone faceZ_Sliding_box_leicht_groesserAMI found patches Sliding_box_leicht_groesserAMI_AMI and Sliding_box_leicht_groesserAMI_AMI_slave Edge intersection testing: Number of edges : 40541007 Number of edges to retest : 7085820 Number of intersected edges : 4162658 Created 1021381 baffles in = 15.67 s Surface : Sliding_box_leicht_groesserAMI faces to become baffle : 2042762 points to duplicate : 0 Snapping to features in 10 iterations ... Constructing mesh displacer ... Build : 2.3.x-f5bc84928a6d Morphing phase -------------- Converting zoned faces into baffles ... For zone faceZ_Sliding_box_leicht_groesserAMI found patches Sliding_box_leicht_groesserAMI_AMI_fein and Sliding_box_leicht_groesserAMI_AMI_fein_slave Edge intersection testing: Number of edges : 19252367 Number of edges to retest : 3583678 Number of intersected edges : 2304343 Created 517848 baffles in = 11.21 s Surface : Sliding_box_leicht_groesserAMI faces to become baffle : 1035704 points to duplicate : 0 Snapping to features in 10 iterations ... Constructing mesh displacer ... without keywordd faceType baffle Build : 2.2.x-f9a78f7f7596 Morphing phase -------------- Converting zoned faces into baffles ... For zone faceZ_Sliding_box_leicht_groesserAMI found patches Sliding_box_leicht_groesserAMI_AMI and Sliding_box_leicht_groesserAMI_AMI_slave Edge intersection testing: Number of edges : 20093094 Number of edges to retest : 3612834 Number of intersected edges : 2347178 Created 520934 baffles in = 10.29 s Snapping to features in 10 iterations... Constructing mesh displacer... | ||||
| Steps To Reproduce | Propeller Tutorial mesh wirh 2.2.x-f9a78f7f7596 --> checkMesh --> 2 Regions reported Propelle Tutorial mesh with 2.3.x-f5bc84928a6d --> checkMesh --> 1 Region reported | ||||
| Tags | No tags attached. | ||||
|
|
sorry another remark ... maybe it is not a bug but I investigate the following: meshed and calculated always with Build : 2.2.x-f9a78f7f7596 1. mesh snappy with entry faceType baffle; mesh has around 7 mio cells 2. checkMesh --> two Regions 3. not sure if it is right make one try with mergeOrSplitBaffles -split and one without --> must I do split Baffles????? 4. calculate both (with split Baffles and without) with pimpleDyMFoam on 16 cores per timestep ca. 43seconds min AMI weight around 1 but max AMI weight arround 2 !? (for both (with and without splitBaffles see below) Other procedure (also same 2.2.x version and workstation) 1. mesh same with snappy without entry faceType baffle; --> exactly the same size as the above grid (7 mio cells) 2. checkMesh --> one Region 3. procedure as explain in propeller tutorial so 3.1. create AMI Faces with topoSet 3.2. removeRedudantZones 3.3. createBaffles 3.4. split Baffels 4. checkMesh --> two Region 5. calculate with pimpleDyMFoam on 16 cores per timestep ca. 36 seconds without keyword faceType baffle; in snappyHexMeshDict Courant Number mean: 8.64905971732e-05 max: 2.59737784981 Time = 5e-05 solidBodyMotionFunctions::rotatingMotion::transformation(): Time = 5e-05 transformation: ((-0.00779796735578 0.000817395792011 5.55111512313e-17) (0.999988144161 (0 0 -0.00486944938111))) AMI: Creating addressing and weights between 255196 source faces and 255196 target faces AMI: Patch source weights min/max/average = 0.9871475696, 1.07806140172, 1.00033048769 AMI: Patch target weights min/max/average = 0.989115709357, 1.07463380688, 1.00032654688 Mesh stats points: 8869498 faces: 23829621 internal faces: 22296551 cells: 7501199 faces per cell: 6.14917321884 boundary patches: 103 point zones: 0 face zones: 3 cell zones: 1 Overall number of cells of each type: hexahedra: 6871916 prisms: 134330 wedges: 0 pyramids: 0 tet wedges: 1835 tetrahedra: 16 polyhedra: 493102 Checking geometry... Overall domain bounding box (-1.00609661216 -1.69330000877 -0.417299985886) (1.02999997139 1.20097994804 1.18283840849) Mesh (non-empty, non-wedge) directions (1 1 1) Mesh (non-empty) directions (1 1 1) Boundary openness (-3.70160124945e-15 3.21047477424e-15 -5.01686200307e-15) OK. Max cell openness = 4.25289656852e-16 OK. Max aspect ratio = 11.7877514808 OK. Minimum face area = 1.37630026846e-09. Maximum face area = 0.00038455321401. Face area magnitudes OK. Min volume = 8.45801299421e-12. Max volume = 5.85978575478e-06. Total volume = 5.53804682654. Cell volumes OK. Mesh non-orthogonality Max: 64.9593120247 average: 7.84795082726 Non-orthogonality check OK. Face pyramids OK. ***Max skewness = 18.6291767531, 145 highly skew faces detected which may impair the quality of the results <<Writing 145 skew faces to set skewFaces Coupled point location match (average 0) OK. Failed 1 mesh checks. End with keyword faceType baffle; in snappyHexMeshDict Courant Number mean: 8.64867181354e-05 max: 2.61435366216 Time = 5e-05 solidBodyMotionFunctions::rotatingMotion::transformation(): Time = 5e-05 transformation: ((-0.00779796735578 0.000817395792011 5.55111512313e-17) (0.999988144161 (0 0 -0.00486944938111))) AMI: Creating addressing and weights between 255205 source faces and 255205 target faces AMI: Patch source weights min/max/average = 0.986455891728, 2.18858144453, 1.0002513297 AMI: Patch target weights min/max/average = 0.987297347862, 2.06349439625, 1.00024762667 Mesh stats points: 8835046 faces: 24033593 internal faces: 22053960 cells: 7501199 faces per cell: 6.1440248419 boundary patches: 106 point zones: 0 face zones: 1 cell zones: 1 Overall number of cells of each type: hexahedra: 6840674 prisms: 161282 wedges: 0 pyramids: 0 tet wedges: 2250 tetrahedra: 16 polyhedra: 496977 Checking geometry... Overall domain bounding box (-1.00609661216 -1.69330000877 -0.417299985886) (1.02999997139 1.20097994804 1.18283840849) Mesh (non-empty, non-wedge) directions (1 1 1) Mesh (non-empty) directions (1 1 1) Boundary openness (-9.75893179571e-17 8.4309853923e-15 -2.406533543e-16) OK. Max cell openness = 4.37988882248e-16 OK. Max aspect ratio = 15.0406628612 OK. Minimum face area = 1.37641030639e-09. Maximum face area = 0.00038455321401. Face area magnitudes OK. Min volume = 8.45734875078e-12. Max volume = 5.85978575478e-06. Total volume = 5.53804742597. Cell volumes OK. Mesh non-orthogonality Max: 64.9586414022 average: 7.85492136799 Non-orthogonality check OK. Face pyramids OK. ***Max skewness = 18.6394512432, 147 highly skew faces detected which may impair the quality of the results <<Writing 147 skew faces to set skewFaces Coupled point location match (average 0) OK. Failed 1 mesh checks. End Finalising parallel run |
|
|
I am running 23x with faceType boundary; and get 2 regions. Same when running with faceType baffle; If you use 'faceType internal' you'll have to duplicate the faces ('createBaffles') and points, if you use 'baffle' you'll only need to duplicate the points (mergeOrSplitBaffles -split), if 'boundary' this is already done for you. |
|
|
hmmm ... i can not reproduce it ... I have the one Case were I always have the error ... in other Cases now not but I can't see the difference in the Moment ... propeller Case works fine whether 2.2.x or 2.3.0 or 2.3.x ... BUT can you update tutorial Case propeller ... propellerTip.obj is missing and also in snappyHexMeshDict there stands propellerTip.obj.gz ... I copied it from 2.2.0 Then the Allruns are running perfectly! Thank you very much for your time |
|
|
The propellerTip.obj.gz is stored in the tutorials/resources directory and gets copied by the ./Allrun.pre script. I'll close this bug - if you encounter problems open a new one. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-03-19 07:30 |
|
New Issue | |
| 2014-03-19 09:13 |
|
Note Added: 0002959 | |
| 2014-03-19 12:17 |
|
Note Added: 0002961 | |
| 2014-03-19 15:33 |
|
Note Added: 0002963 | |
| 2014-03-20 09:58 |
|
Note Added: 0002965 | |
| 2014-03-20 09:58 |
|
Status | new => resolved |
| 2014-03-20 09:58 |
|
Fixed in Version | => 2.3.x |
| 2014-03-20 09:58 |
|
Resolution | open => unable to reproduce |
| 2014-03-20 09:58 |
|
Assigned To | => user4 |
