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August 12, 2009, 16:21 |
Flow Around a Cylinder
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#1 |
Senior Member
Ahmed
Join Date: Mar 2009
Location: NY
Posts: 251
Rep Power: 18 |
I am trying to model a flow around a cylinder, I am facing similar problems to those in this post
http://www.cfd-online.com/Forums/ope...mple-mesh.html the first error message states that face 0 in patch 0 does not have neighbour cell face: 4(11 8 21 24)#0 Foam::error I tried to use the blockMesh -blockTopology But I cannot find the dumped file anywhere I appreciate any hint Here is the blockDict file, please note I have commented out all the blocks but the first one , Trying to make it one block by one /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 1.6 | | \\ / A nd | Web: http://www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object blockMeshDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // convertToMeters 0.001; vertices ( (24500 25000 0) //0 (25000 24500 0) //1 (25500 25000 0) //2 (25000 25500 0) //3 (24475 25000 0) //4 (25000 24475 0) //5 (25525 25000 0) //6 (25000 25525 0) //7 (25000 0 0) //8 (75000 0 0) //9 (75000 50000 0) //10 (25000 50000 0) //11 (0 25000 0) //12 (24500 25000 10) //13 (0) (25000 24500 10) //14 (1) (25500 25000 10) //15 (2) (25000 25500 10) //16 (3) (24475 25000 10) //17 (4) (25000 24475 10) //18 (5) (25525 25000 10) //19 (6) (25000 25525 10) //20 (7) (25000 0 10) //21 (8) (75000 0 10) //22 (9) (75000 50000 10) //23 (10) (25000 50000 10) //24 (11) (0 25000 10) //25 (12) ); blocks ( hex (4 0 2 6 4 17 13 15 19 17) (10 10 1) simpleGrading (1 1 1) // hex (2 3 0 4 7 6 15 16 13 17 20 19) (10 10 1) simpleGrading (1 1 1) // hex (4 5 8 12 17 18 21 23) (20 10 1) simpleGrading (1 1 1) // hex (7 11 12 4 20 24 25 17) (20 20 1) simpleGrading (1 1 1) // hex (5 8 9 10 11 7 6 18 21 22 23 24 20 19) (10 20 1) simpleGrading (1 1 1) ); edges ( arc 0 2 (25000 24500 0) arc 2 0 (25000 25500 0) arc 4 6 (25000 24475 0) arc 6 4 (25000 25525 0) arc 11 8 (0 25000 0) arc 13 15 (25000 24500 10) arc 15 13 (25000 25500 10) arc 17 19 (25000 24475 10) arc 19 17 (25000 25525 10) arc 24 21 (0 25000 10) ); patches ( patch inlet ( (11 8 21 24) ) patch outlet ( (9 10 23 22) ) patch bottom ( (8 9 22 21) ) patch top ( (11 10 23 24) ) wall cylinder ( (0 1 2 15 14 13) (2 3 0 13 16 15) ) empty frontAndBack ( (12 8 9 10 11) (25 21 22 23 24) ) ); mergePatchPairs ( ); // ************************************************** *********************** // Is there a document where the meaning of error messages are explained? Appreciate all help |
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October 30, 2009, 00:08 |
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#2 | |
Senior Member
Daniel WEI (老魏)
Join Date: Mar 2009
Location: Beijing, China
Posts: 689
Blog Entries: 9
Rep Power: 21 |
Easy, you will figure it out yourself.
I have done a lot of cylinder flow cases using blockMesh, it is not that hard, so be patient. Quote:
face 0 in patch 0 does not have neighbour cell face: 4(11 8 21 24)#0 Foam::error You should be glad whenever you see this kind of errors, because it would be easy to solve out. One hint: please see you do respect the right hand rule. Cheers,
__________________
~ Daniel WEI ------------- Boeing Research & Technology - China Beijing, China |
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