Learning Forum

[Oliver27]

Hi, have these errors when loading up fluent after outputting my mesh from ICEM.nn> Warning: Ignoring WB preference save-post-processing-imagesnMulticore processors detected. Processor affinity set!nReading C:\Users\Oliver\Documents\CFD THESIS\hsdth_files\dp0\ICM-1\ICEMCFD\ICM-1.msh...nBuffering for file scan...nn16 nodes, binary.n9 quadrilateral cells, zone 7, binary.n12 2D interior faces, zone 8, binary.n11 2D pressure-far-field faces, zone 9, binary.nnBuilding...nmeshnauto partitioning mesh by Metis (fast),ndistributing meshnparts..,nfaces..,nnodes..,ncells..,nbandwidth reduction using Reverse Cuthill-McKee: 2/1 = 2nClearing partially read grid.nnError at host: Build Grid: Aborted due to critical error.nnError at Node 0: Build Grid: Aborted due to critical error.nn1: Cell is missing face: Cell 0, zone 7, (ID: 2): at location (-2.20000e+01, 5.31955e-07).nError at Node 1: Build Grid: Aborted due to critical error.nn===============Message from the Cortex Process================================nnCompute processes interrupted. Processing can be resumed.nn==============================================================================nnError: Build Grid: Aborted due to critical error.nError Object: #fnnMy othogonal quality is for my mesh lays in the 0.9-0.1 range. and the lowest quality on my mesh is 0.0865. Any help would be great.n

[DrAmine]

It seems like you mesh is corrupted. Can you first check your mesh in ICEM CFD?n

[Oliver27]

What do you need me to check for in my mesh?n

[DrAmine]

If ICEM CFD does identify any issues with it.n

[Oliver27]

When running the exporter to fluent this message is now popping up.n Running FLUENT V6 Interface Vers. 18.2.0nn Creating a Fluent 2D mesh.n Computing connectivity for 9 cells.n Creating cell sections for 9 cells.n Checking mesh:n interior faces : 12n interior walls : 0n boundary faces : 11n Warning : Mesh has 1 uncovered faces.n Creating face section for 23 faces.nn FLUENT V6 input file written (file: ICM-1.msh) n WARNING: Mesh has uncovered faces.n

[DrAmine]

Screenshots please of ICEM CFD and the way you are generating the mesh.n

[Oliver27]

I've assigned a block to the whole structure before splitting it up and assigning it to edges. Then I've collapsed blocks and move nodes around so i can remove the blocks in the aerofoil before assigning a mesh size through the blocking menun

[Oliver27]

When running a check of the mesh it bring ups no errors. But when it exports to fluent it now brings up this line:nerror : domainfile contains no nodesn

[DrAmine]

If you close the mesh, generate the pre-mesh, convert to unstructured mesh and then check the new mesh: does it work? Is this the first time you use ICEM CFD?n

[Oliver27]

Yes it is.nChecking the mesh now brings up a message saying '909 problem elements were found. you can put them in a new subset Uncovered Faces, fix them by covering the exposed faces or ignore them'n

[DrAmine]

I will say try it perhaps it might work. Unfortunately maybe you better first focus on the ICEM CFD part to resolve any issues. n

[Oliver27]

the uncovered faces seem to be around the edge of my aerofoil. Not sure why it seems to have an issue with them. Trying it on fluent now brings up this error. Warning: Ignoring WB preference save-post-processing-imagesnMulticore processors detected. Processor affinity set! Reading C:\\Users\\Oliver\\Documents\\CFD THESIS\\hsdth_files\\dp0\\ICM-1\\ICEMCFD\\ICM-1.msh... Buffering for file scan...143596 nodes, binary.141780 quadrilateral cells, zone 6, binary.n281742 2D interior faces, zone 7, binary.n1818 2D pressure-far-field faces, zone 8, binary. Warning: Invalid face type 1. Skipping.Warning: Invalid face type 1. Skipping.Warning: Invalid face type 1. Skipping.Building...meshnauto partitioning mesh by Metis (fast),ndistributing meshnparts..,nfaces..,nnodes..,ncells..,nbandwidth reduction using Reverse Cuthill-McKee: 19239/256 = 75.1523nClearing partially read grid.nnError at host: Build Grid: Aborted due to critical error.0: Cell is missing face: Cell 1226, zone 6, (ID: 1912): at location (-2.24827e+01, -1.79742e+00).nError at Node 0: Build Grid: Aborted due to critical error.n1: Cell is missing face: Cell 1226, zone 6, (ID: 72802): at location (-2.24827e+01, -1.79742e+00).nError at Node 1: Build Grid: Aborted due to critical error.nn===============Message from the Cortex Process================================Compute processes interrupted. Processing can be resumed.==============================================================================Error: Build Grid: Aborted due to critical error. Error Object: #f