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March 20, 2024, 12:36 |
Volume and Surface mesh taking a lot of time
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Join Date: Mar 2024
Posts: 3
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I am currently working on a internship, where i have to simulate the flow around an missile body for different Mach number having different AOA(Angle of Attack), now I have made the CAD model of the missile body on SOLIDWORKS 2021 and the computational domain part in ANSYS design modeler, when I tried meshing it previously it gave me and error for self-intersecting or close to intersecting surface mesh error, and I used the share topology function in SPACECLAIM to rectify it, but it was still taking a lot of time for a cuboid domain, so I reduced the size of the domain and the surface mesh went fine, but when I gave it for volume mesh it is stuck at 36% progress showing remeshing and it been there from past 6hrs or more, It been more than 4 weeks I am stuck with CAD and meshing only, I possible please tell me where the problem is located I am attaching all the required files here. And this is the message on Fluent console
Cleanup script file is C:\Users\gnssv\cleanup-fluent-ADITYA-10324.bat Meshing> Reading "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FLTG.msh.h5" ... 3D mesh nodes: 18548 edges: 6743 faces: 22673 cells: 0 reading 1 node zones reading 9 edge zones reading 6 face zones generating pointers...done. extracting boundary entities... 18548 boundary nodes. 22673 boundary faces. 6 boundary face zones. done. analyzing boundary connectivity...done. zone not found. ---------------- A local size of 0.0048828125 was added to inlet ---------------- A local size of 0.0048828125 was added to outlet ---------------- A local size of 0.0048828125 was added to walls Error: Failed to update task "Add Local Sizing" as value(s) for below argument(s) are not provided: Face Zone Labels Error Object: #f Error: state/object/execute-command:Exception encountered in S_AddChildToTask Error Object: () ---------------- A local size of 0.0048828125 was added to missile_body ---------------- A local size of 0.0048828125 was added to fins Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\Workflow\TaskObject3 .msh.h5" ... writing 1 node zones writing 9 edge zones writing 6 face zones done. ---------------- The Global Min size was adjusted to 0.0001 processing size functions/scoped sizing to create Size Field... Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Done. Importing one mesh object per program-controlled and one zone per body ... C:\Program Files\ANSYS Inc\v221\commonfiles\CPython\3_7\winx64\Release\py thon\..\Ansys\TGrid\CADReaders.py started by gnssv on ADITYA winx64 on Wed Mar 20 12:41:32 2024 using Python 3.7.11 (remotes/origin/b0b4eda9448d622fbb214539623a7f129f39e1f4-dirty:b0b4eda, Oct 18 20) [MSC v.1920 64 bit (AMD64)] using Ansys.Meshing.FieldMesher build Nov 30 2021 12:29:41 including TGLib build Nov 12 2019 13:13:16 running ANSYS TGrid CADToTGridConverter ... setting up parameters ... setting up parameters done. running conversion ... converting 1 file(s) from Workbench to FLTG using output path 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300/out171091869219300.tgf' converting file 'Geom.agdb' (1 of 1) from Workbench to FLTG using output path 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300' importing data ... importing meshing model from PartMgr from file 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\Geom\DM\Geom.agdb' ... setting enclosure and symmetry processing to False setting transfer named selections to True setting named selection prefixes to '' setting mixed import resolution type to 'SolidAndSurface' setting target application to 'FluentMeshing' attaching to assembly ... attaching to assembly done in 9.252000000000001 [s] processing assembly 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\Geom\DM\Geom.agdb' with ID 1 length unit = [m] processing part 'Air' with ID 3 processing named selection 'Inlet' processing named selection 'Wall' processing named selection 'Outlet' processing named selection 'Missile_Body' processing named selection 'Finset1' processing named selection 'Finset2' processing data ... loading size function background grid from file 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\\Geo m.sf' ... reading size function background grid file 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\\Geo m.sf' ... Read 14684045 vertices initializing size function background grid done in 8.356999999999999 [s] Duplicate front Edge at (1.189987 -0.036428 -0.036425) Duplicate front Edge at (1.189900 -0.036334 -0.036314) Duplicate front Edge at (1.189988 0.077330 -0.077328) Duplicate front Edge at (1.189584 0.065779 -0.065695) Duplicate front Edge at (1.189851 -0.047398 0.047425) Duplicate front Edge at (1.189749 -0.070916 0.070864) Duplicate front Edge at (1.189997 0.035589 0.035589) Duplicate front Edge at (1.189640 0.063790 0.063717) Duplicate front Edge at (0.609985 0.000002 -0.053037) Duplicate front Edge at (0.609778 -0.000004 -0.091009) Duplicate front Edge at (0.609984 -0.000002 0.053522) Duplicate front Edge at (0.609401 -0.000086 0.144788) tessellating 43 faces done in 378.631 [s] removing named collections of entities ... removing named collections of entities stopped, no named collections selected. analyzing feature edges ... detecting feature edges, feature angle = 40 [deg] ... initializing projection on 6 entities done in 2.692 [s] feature edge angle analysis for 643 edges done in 2.861 [s] Data information Meshing model Attributes: 'LengthUnit': '[m]' Entity summary: Collection: 6 Component : 2 Body : 1 Shell : 2 Face : 43 Loop : 51 Edge : 643 Vertex : 612 Surface : 43 Curve : 643 Tessellation summary: Face facets : 9236325 Edge segments: 12528 Bounding box: (-0.4000000059604645, -1.5, -2.5) x (3.599999904632568, 1.5, 2.5) Assembly component hierarchy: 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\Geom\DM\Geom.agdb' 'Air' NamedCollections: 'Inlet' 'Wall' 'Outlet' 'Missile_Body' 'Finset1' 'Finset2' exporting FLTG data to file 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\out1 71091869219300.tgf' ... zone setup for 21 zones done in 8.602 [s] writing face-based mesh file 'C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\out1 71091869219300.tgf' ... ======== Exported Data ======== Entity summary: Object : 1 Object region: 8 Zone : 20 running conversion done. running ANSYS TGrid CADToTGridConverter done. ran ANSYS TGrid CADToTGridConverter in 411.606 [s] ======== Command Execution Log Manager ======== Number of execution logs: 1 MeshingModelCommandExecLog Label = 'ANSYS_MESH_FM_WARNING_ID_MESHINGMODEL_TESSELLATIO N_CREATION_ENTITIES_WHERE_CONFORMAL_TESSELLATION_F AILED' EntityIDs = (1923, 1932, 1941, 1950, 1996, 2005) Points = () Reading "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300/out171091869219300.tgf"... Reading "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300/out171091869219300.tgf"... nodes: 4630191 edges: 11256 faces: 9236311 cells: 0 reading 4630191 storage data (id 1, type 41, double precision binary). appending mesh... done. generating pointers...done. extracting boundary entities... 4648739 boundary nodes. 9258984 boundary faces. 14 boundary face zones. done. Reading "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Reading "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Read 14684045 vertices 31 boundary nodes. 0 faces removed. remeshing... Warning: Failed to remesh 1 area(s). Just mesh size adaptation was done for those area(s). Faces in those area(s) have been marked. 23 boundary nodes. 30 faces removed. 9 faces are deleted1026 boundary nodes. 1373 faces removed. 1 faces are deleted1 boundary nodes. 1 faces removed. Warning: Failed to remesh 18 area(s). Just mesh size adaptation was done for those area(s). Faces in those area(s) have been marked. 17 faces are deleted---------------- Repair (Patch) adjacent to zone finset2 was not successful remeshing... Warning: Failed to remesh 2 area(s). Just mesh size adaptation was done for those area(s). Faces in those area(s) have been marked. 57 boundary nodes. 12 faces removed. 4 faces are deleted847 boundary nodes. 651 faces removed. 2 faces are deleted Warning: Failed to remesh 83 area(s). Just mesh size adaptation was done for those area(s). Faces in those area(s) have been marked. 6 faces are deleted---------------- Repair (Patch) adjacent to zone missile_body was not successful Deleted 3 faces with 3 free edges. Deleted 14 faces with 2 free edges. Deleted 0 faces with 3 free edges. Deleted 0 faces with 2 free edges. removed 139903 faces. removed 69146 faces. ---- Warning--- Free faces still exists in the model on ((finset2 missile_body finset1)) zones. If that is not expected, the surface meshing was not successful 0 faces marked. computing regions... Warning: 3 internal baffles identified. Check for leaks and self-intersections in the mesh, if these are not expected. done region-name number of baffles zone ids of baffles -------------------- -------------------- -------------------- air 3 (33 34 36) Deleting import_curvature_0 Deleting import_proximity_0 processing size functions/scoped sizing to create Size Field... Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\FM_ADITYA_19300\Geom .sf"... Done. remeshing... ---------------- 1 disconnected regions have been detected ------------------------- --------------------- -------------------- ---------------- ---------- name skewed-cells (> 0.80) averaged-skewness maximum-skewness face count ------------------------- --------------------- -------------------- ---------------- ---------- air 0 0.0048148934 0.62788468 9218856 ------------------------- --------------------- -------------------- ---------------- ---------- name skewed-cells (> 0.80) averaged-skewness maximum-skewness face count ------------------------- --------------------- -------------------- ---------------- ---------- air 0 0.0048148934 0.62788468 9218856 ---------------- After Surface mesh, the model consists of 1 fluid/solid regions and 0 voids. ---------------- Surface Meshing of Geom complete in 35.10 minutes, with a maximum skewness of 0.63. ---------------- Velocity-inlet zone type was automatically assigned to zones containing the string 'inlet'. ---------------- Pressure-outlet zone type was automatically assigned to zones containing the string 'outlet'. ---------------- Boundary Conditions Updated ---------------- Regions Updated Created Scoped Prism: smooth-transition_1 ---------------- Inflation control added to air Writing "C:\Users\gnssv\AppData\Local\Temp\WB_gnssv_14604_ 2\wbnew_files\dp0\FLTG\Fluent\Workflow\TaskObject1 1.msh.h5" ... writing 13 node zones writing 21 edge zones writing 12 face zones done. updating regions... Warning: 3 internal baffles identified. Check for leaks and self-intersections in the mesh, if these are not expected. region-name number of baffles zone ids of baffles -------------------- -------------------- -------------------- air 3 (33 34 36) done. checking object "air"... skipping validating regions of mesh object "air"...done. auto meshing object air... processing scoped prisms... starting orientation...done. setting prism growth...done. done. Identifying Topology... Generating Prisms... Generating initial mesh... . Refining mesh... based on this can anyone tell me what is the issue |
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