View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0004079 | OpenFOAM | Bug | public | 2024-05-15 09:26 | 2024-05-15 15:16 |
| Reporter | blocksgearing0d | Assigned To | henry | ||
| Priority | high | Severity | major | Reproducibility | always |
| Status | closed | Resolution | suspended | ||
| Platform | GNU/Linux | OS | Ubuntu | OS Version | 22.04 |
| Product Version | dev | ||||
| Summary | 0004079: meshToMesh topology change always yields error with multiphaseEuler | ||||
| Description | Topology change yields an error when using the multiphaseEuler at the first meshToMesh mapping time. | ||||
| Steps To Reproduce | Copy and run the attached script in any multiphaseEuler tutorial (which utilises first order ddt-scheme). The script will create a dynamicMeshDict with mapping at the first write-time to the current mesh (i.e. to constant/polyMesh). | ||||
| Additional Information | The following tutorials are tested and failed: - multiphaseEuler/bed - multiphaseEuler/LBend - multiphaseEuler/hydrofoil - multiphaseEuler/injection - multiphaseEuler/wallBoilingIATE In contrast, these tutorials are tested and mapped successfully: - fluid/aerofoilNACA0012 - fluid/blockedChannel - incompressibleFluid/pitzDailyPulse | ||||
| Tags | No tags attached. | ||||
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createMeshToMesh.sh (1,150 bytes)
#!/bin/sh
cd ${0%/*} || exit 1 # Run from this directory
# Source tutorial run functions
. $WM_PROJECT_DIR/bin/tools/RunFunctions
# Create dynamic mesh with only one topology change at first write time
cp $FOAM_TUTORIALS/shockFluid/movingCone/constant/dynamicMeshDict constant/dynamicMeshDict
foamDictionary -entry mover -remove constant/dynamicMeshDict
foamDictionary -set '
topoChanger/timeDelta=1e-10,
topoChanger/times=( ${${FOAM_CASE}/system/controlDict!writeInterval} ),
' constant/dynamicMeshDict
# Set topology change settings
foamDictionary -set '
solvers/pcorr={
solver PCG;
preconditioner DIC;
tolerance 1e-6;
relTol 0;
},
PIMPLE/correctPhi=true
' system/fvSolution
# Generate meshToMesh region
writeInterval=$(foamDictionary -entry writeInterval -value system/controlDict)
mkdir constant/meshToMesh_${writeInterval}
ln -sf ../polyMesh constant/meshToMesh_${writeInterval}/polyMesh
# Decompose meshToMesh after the main mesh
sed -i "/decomposePar/a runApplication -s ${writeInterval} decomposePar -noFields -region meshToMesh_${writeInterval}" Allrun*
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mesh-to-mesh mapping is VERY complex and new functionality which requires significant further development, testing and validation which will require further funding. Are you in a position to contribute to OpenFOAM development and maintenance funding for this functionality? |
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We just noticed that the current mesh-to-mesh mapping limitation with multiphaseEuler is not mentioned in the topology change article ( https://cfd.direct/openfoam/free-software/dynamic-meshes/ ). Seeking a clarification we opened this bug report. I am afraid, I am not in a position to make any funding policy decisions but our group (Aalto Energy Conversion) has purchased a maintenance plan. |
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Mesh-to-mesh mapping has not been tested with multiphaseEuler or other complex physics solvers other than for engine calculations as it is a recent addition the development of which is funded by a group for this purpose. I will investigate the issue but it is likely to involve significant development to resolve, more than can reasonably by covered within the standard maintenance. We well seek further funding for this work. |
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Pending funding |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2024-05-15 09:26 | blocksgearing0d | New Issue | |
| 2024-05-15 09:26 | blocksgearing0d | File Added: createMeshToMesh.sh | |
| 2024-05-15 11:56 | henry | Note Added: 0013240 | |
| 2024-05-15 13:40 | blocksgearing0d | Note Added: 0013241 | |
| 2024-05-15 15:15 | henry | Note Added: 0013242 | |
| 2024-05-15 15:16 | henry | Assigned To | => henry |
| 2024-05-15 15:16 | henry | Status | new => closed |
| 2024-05-15 15:16 | henry | Resolution | open => suspended |
| 2024-05-15 15:16 | henry | Note Added: 0013243 |
