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April 5, 2013, 06:03 |
solving problem
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#1 |
Member
Mizo
Join Date: Jan 2013
Posts: 34
Rep Power: 13 |
Hi Foamers,
could any one plz help me to find the Error with simuation car in windtunnel, i got this error by solving with LESmodel. the mesh was correctly created, but i dont know the backgound of this error: --> FOAM FATAL IO ERROR: keyword surface is undefined in dictionary "::surfaces::surfaces" file: ::surfaces::surfaces from line 194 to line 200. From function dictionary::lookupEntry(const word&, bool, bool) const in file db/dictionary/dictionary.C at line 410. FOAM exiting i'll be grateful for ur help thanx in advance, Monzer |
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April 5, 2013, 07:26 |
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#2 | |
Senior Member
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Quote:
what are the mesh geometry and the boundary conditions for your case?? |
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April 5, 2013, 08:24 |
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#3 |
Member
Mizo
Join Date: Jan 2013
Posts: 34
Rep Power: 13 |
Hi Tushar,
my autoHexMesh ist: FoamFile { version 2.1.2; format ascii; root ""; case "project2"; instance ""; local ""; class dictionary; object autoHexMeshDict; } include "$FOAM_CONFIG/autoHexMesh.misc"; include "$FOAM_CONFIG/autoHexMesh.motionDict"; include "$FOAM_CONFIG/autoHexMesh.snapDict"; include "$FOAM_CONFIG/autoHexMesh.shrinkDict"; globalFeatureEdges true; doLayers true; doSnap true; doRefine true; curvature 0.95; nBufferLayers 4; keepPoints ((0 0 0)); surfaces ( { name SAE; file "SAE.stl"; surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; regions ( { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property; } { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property1; } { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property2; } { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property3; } { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property4; } { surfaceLayers 3; maxRefinementLevel 5; minRefinementLevel 3; name Default_PSHELL_Property5; } ); } { name Windkanal; file "Windkanal.stl"; surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; regions ( { surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; name 00_Inlet; } { surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; name 00_Outlet; } { surfaceLayers 3; maxRefinementLevel 0; minRefinementLevel 0; name 00_Ground; } { surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; name 00_TOP; } { surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; name Right_Side; } { surfaceLayers 0; maxRefinementLevel 0; minRefinementLevel 0; name 00_Left_Side; } ); } ); refinementShells ( { name VR; type searchableBox; min (-1500 -1500 -202); max (3500 1500 1500); refineInside true; level 3; } ); and the boundary is: FoamFile { version 2.0; format ascii; class polyBoundaryMesh; location "constant/polyMesh"; object boundary; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 6 ( block-mesh_BMMinX { type wall; nFaces 7936; startFace 2684744; } block-mesh_BMMaxX { type wall; nFaces 7936; startFace 2692680; } block-mesh_BMMinZ { type wall; nFaces 14136; startFace 2700616; } block-mesh_BMMaxZ { type wall; nFaces 14136; startFace 2714752; } block-mesh_BMMinY { type wall; nFaces 7296; startFace 2728888; } block-mesh_BMMaxY { type wall; nFaces 7296; startFace 2736184; } ) // ************************************************** *********************** // the blockMesh is: FoamFile { version 2.1.2; format ascii; root "Y:/10_Studenten/UnsteadyAero/OpenFOAM_Validierung/Testing"; case "project2"; instance ""; local ""; class dictionary; object blockMeshDict; } convertToMeters 1; edges (); mergePatchPairs() ; vertices ( (-26000 -31000 -1202) (31000 -31000 -1202) (31000 31000 -1202) (-26000 31000 -1202) (-26000 -31000 31000) (31000 -31000 31000) (31000 31000 31000) (-26000 31000 31000) ); blocks ( hex ( 0 1 2 3 4 5 6 7 ) (114 124 64 ) simpleGrading (1 1 1) ); patches ( wall block-mesh_BMMinX ( (0 4 7 3 ) ) wall block-mesh_BMMaxX ( (1 2 6 5 ) ) wall block-mesh_BMMinZ ( (0 3 2 1 ) ) wall block-mesh_BMMaxZ ( (4 5 6 7 ) ) wall block-mesh_BMMinY ( (0 1 5 4 ) ) wall block-mesh_BMMaxY ( (3 7 6 2 ) ) ); |
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April 5, 2013, 08:33 |
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#4 |
Member
Mizo
Join Date: Jan 2013
Posts: 34
Rep Power: 13 |
the boundary conditions are :
boundaryConditions { regionDefaults { walls { } outlets { } inlets { } } partialNamed { } exactNamed { Windkanal_00_Ground { U { value uniform (80 0 0); type fixedValue; } } Windkanal_00_Inlet { U { value uniform (80 0 0); type fixedValue; } nuTilda { type turbulentIL; I 0.1; L 0.01; Uref 80; } } Windkanal_00_Left_Side { nuSgs { type zeroGradient; } U { type slip; } } Windkanal_00_Outlet { p { value uniform 0; type fixedValue; } nuTilda { type turbulentIL; I 0.1; L 0.01; Uref 80; } } Windkanal_00_TOP { nuSgs { type zeroGradient; } U { type slip; } } Windkanal_Right_Side { nuSgs { type zeroGradient; } U { type slip; } } } } |
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April 7, 2013, 05:09 |
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#5 | |
Senior Member
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Quote:
Can you please upload your case file for reference? That would be much better. |
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April 10, 2013, 06:06 |
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#6 | |
Senior Member
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Quote:
You do check your blockMesh file, I think there you are mistaking. Try to find the inlet/outlet patches and wall patch, and try to co-relate the code with boundary conditions. |
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April 10, 2013, 06:16 |
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#7 | |
Senior Member
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Quote:
I mean to say in my earlier thread, that you need to change the above code lines which you have written.. Best of luck.. |
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