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September 7, 2011, 13:39 |
Multiple internal wall an fluid zones
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Member
Miles
Join Date: Sep 2011
Posts: 48
Rep Power: 14 |
Hi Foamer
I am trying to convert a .msh file with multiple internal walls. After many try I have managed to reproduce the procedure from the open wiki http://openfoamwiki.net/index.php/Ho...internal_walls I have some problems and questions Firsts this procedure did note worked on a 2D quad mesh. When I do the checkMesh I have 3 kinds of error : « Checking topology... Boundary definition OK. ***Total number of faces on empty patches is not divisible by the number of cells in the mesh. Hence this mesh is not 1D or 2D. Cell to face addressing OK. ***Unused points found in the mesh, number unused by faces: 2 number unused by cells: 2 <<Writing 2 unused points to set unusedPoints Upper triangular ordering OK. Face vertices OK. Number of regions: 1 (OK). Checking patch topology for multiply connected surfaces ... Patch Faces Points Surface topology entre_eau_brute 63 128 ok (non-closed singly connected) sortie_eau 32 66 ok (non-closed singly connected) degazage 250 502 ok (non-closed singly connected) surf_base_buse 16 34 ok (non-closed singly connected) wall 655 1316 ok (non-closed singly connected) frontAndBackPlanes 184008 185324 ok (non-closed singly connected) real-wall_buse_1 148 302 ok (non-closed singly connected) real-wall_buse_2 150 304 ok (non-closed singly connected) Checking geometry... Overall domain bounding box (-4.44089e-16 0 -0.0282843) (2 2 0.0282843) Mesh (non-empty, non-wedge) directions (0 0 0) Mesh (non-empty) directions (0 0 0) ***Number of edges not aligned with or perpendicular to non-empty directions: 360577 <<Writing 184185 points on non-aligned edges to set nonAlignedEdges ***Boundary openness (8.32459e-07 1.86471e-06 1.49086e-19) possible hole in boundary description. ***Open cells found, max cell openness: 0.333333, number of open cells 2 <<Writing 2 non closed cells to set nonClosedCells Minumum face area = 2.83025e-06. Maximum face area = 0.000622352. Face area magnitudes OK. Min volume = 1.60104e-07. Max volume = 5.96973e-06. Total volume = 0.226274. Cell volumes OK. Mesh non-orthogonality Max: 28.4768 average: 1.40368 Non-orthogonality check OK. Face pyramids OK. Max skewness = 0.750378 OK. » My second concern is when I try to apply the procedure to a multiple internal-wall mesh. I start with one of the internal wall. A new folder is created named 0.001. Inside I can find all the file corresponding to the new mesh. But I don't have any « Sets » folder as in the constant folder where the original mesh is still located. In the wiki it is indicated to use the instruction « SplitMeshWithSets ». The problem is that I am using OF 2.01 and this instruction is not available anymore. My question can be resume in « How can I apply several times the SplitMesh procedure on a given mesh » Third question, Can OF handle a mesh with multiple Fluid zone as in fluent. I am looking for a tuto on the subject. Has anyone some resource on the subject? Thanks a lot for you help. Regards, Miles |
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