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-   -   BlockMesh number internal faces and boundary (http://www.cfd-online.com/Forums/openfoam-meshing-blockmesh/95047-blockmesh-number-internal-faces-boundary.html)

ynos December 4, 2011 09:02

BlockMesh number internal faces and boundary
 
Hi everyone
I have a Problem with blockMesh, there are 9 faces like lost or undefinied:


/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.0.1 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.0.1-51f1de99a4bc
Exec : blockMesh
Date : Dec 04 2011
Time : 13:54:32
Host : simon-VPCEB1J1E
PID : 3622
Case : /home/simon/Escritorio/bloquemierda4
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Creating block mesh from
"/home/simon/Escritorio/bloquemierda4/constant/polyMesh/blockMeshDict"
Creating curved edges
Creating topology blocks
Creating topology patches

Reading patches section

Creating block mesh topology

Reading physicalType from existing boundary file

Default patch type set to empty

Check topology

Basic statistics
Number of internal faces : 75 The problem
Number of boundary faces : 66
Number of defined boundary faces : 66
Number of undefined boundary faces : 0
Checking patch -> block consistency

Creating block offsets
Creating merge list .

Creating polyMesh from blockMesh
Creating patches
Creating cells
Creating points with scale 1

Writing polyMesh
----------------
Mesh Information
----------------
boundingBox: (-50 -20 -25) (15 20 5)
nPoints: 39401
nCells: 36000
nFaces: 111300
nInternalFaces: 104700
----------------
Patches
----------------
patch 0 (start: 104700 size: 1200) name: xmin
patch 1 (start: 105900 size: 900) name: zmax
patch 2 (start: 106800 size: 900) name: zmin
patch 3 (start: 107700 size: 1200) name: ymax
patch 4 (start: 108900 size: 1200) name: xmax
patch 5 (start: 110100 size: 1200) name: ymin

Attached the blokMeshDict
Thanks in advanced



/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.5 |
| \\ / A nd | Web: http://www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}


convertToMeters 1;
vertices
(
( -50 20 -25)
( -50 20 -15)
( -50 5 -25)
( -50 5 -15)
( -50 20 -5)
( -50 5 -5)
( -50 20 0)
( -50 -5 -25)
( -25 20 -25)
( -50 -5 -15)
( -25 20 -15)
( -50 5 0)
( -25 5 -25)
( -50 20 5)
( -25 5 -15)
( -50 -5 -5)
( -25 20 -5)
( -50 5 5)
( -50 -5 0)
( -25 -5 -25)
( -25 20 0)
( -25 5 -5)
( -25 -5 -15)
( -25 5 0)
( -50 -5 5)
( -25 20 5)
( -50 -20 -25)
( -25 -5 -5)
( -50 -20 -15)
( -25 5 5)
( -25 -5 0)
( -50 -20 -5)
( -25 -5 5)
( -50 -20 0)
( -25 -20 -25)
( -25 -20 -15)
( -50 -20 5)
( 1 20 -25)
( -25 -20 -5)
( 1 20 -15)
( 1 5 -25)
( -25 -20 0)
( 1 5 -15)
( 1 20 -5)
( -25 -20 5)
( 1 -5 -25)
( 1 5 -5)
( 1 20 0)
( 1 -5 -15)
( 1 5 0)
( 1 20 5)
( 1 -5 -5)
( 1 5 5)
( 1 -5 0)
( 1 -5 5)
( 1 -20 -25)
( 15 20 -25)
( 1 -20 -15)
( 15 20 -15)
( 15 5 -25)
( 15 5 -15)
( 1 -20 -5)
( 15 20 -5)
( 1 -20 0)
( 15 -5 -25)
( 15 20 0)
( 15 5 -5)
( 15 -5 -15)
( 15 5 0)
( 1 -20 5)
( 15 20 5)
( 15 -5 -5)
( 15 5 5)
( 15 -5 0)
( 15 -5 5)
( 15 -20 -25)
( 15 -20 -15)
( 15 -20 -5)
( 15 -20 0)
( 15 -20 5)
);

blocks
(
hex (63 69 79 78 53 54 74 73) (10 10 10) simpleGrading (1 1 1)
hex (53 54 74 73 49 52 72 68) (10 10 10) simpleGrading (1 1 1)
hex (47 49 68 65 50 52 72 70) (10 10 10) simpleGrading (1 1 1)
hex (61 63 78 77 51 53 73 71) (10 10 10) simpleGrading (1 1 1)
hex (46 51 71 66 49 53 73 68) (10 10 10) simpleGrading (1 1 1)
hex (43 46 66 62 47 49 68 65) (10 10 10) simpleGrading (1 1 1)
hex (48 57 76 67 51 61 77 71) (10 10 10) simpleGrading (1 1 1)
hex (42 48 67 60 46 51 71 66) (10 10 10) simpleGrading (1 1 1)
hex (39 42 60 58 43 46 66 62) (10 10 10) simpleGrading (1 1 1)
hex (54 69 44 32 53 63 41 30) (10 10 10) simpleGrading (1 1 1)
hex (52 49 23 29 50 47 20 25) (10 10 10) simpleGrading (1 1 1)
hex (52 54 32 29 49 53 30 23) (10 10 10) simpleGrading (1 1 1)
hex (51 46 21 27 53 49 23 30) (10 10 10) simpleGrading (1 1 1)
hex (46 43 16 21 49 47 20 23) (10 10 10) simpleGrading (1 1 1)
hex (46 51 27 21 42 48 22 14) (10 10 10) simpleGrading (1 1 1)
hex (46 42 14 21 43 39 10 16) (10 10 10) simpleGrading (1 1 1)
hex (51 53 30 27 61 63 41 38) (10 10 10) simpleGrading (1 1 1)
hex (48 51 27 22 57 61 38 35) (10 10 10) simpleGrading (1 1 1)
hex (27 21 5 15 30 23 11 18) (10 10 10) simpleGrading (1 1 1)
hex (32 30 18 24 29 23 11 17) (10 10 10) simpleGrading (1 1 1)
hex (25 29 17 13 20 23 11 6) (10 10 10) simpleGrading (1 1 1)
hex (21 16 4 5 23 20 6 11) (10 10 10) simpleGrading (1 1 1)
hex (22 14 3 9 27 21 5 15) (10 10 10) simpleGrading (1 1 1)
hex (14 10 1 3 21 16 4 5) (10 10 10) simpleGrading (1 1 1)
hex (44 41 33 36 32 30 18 24) (10 10 10) simpleGrading (1 1 1)
hex (41 38 31 33 30 27 15 18) (10 10 10) simpleGrading (1 1 1)
hex (35 22 9 28 38 27 15 31) (10 10 10) simpleGrading (1 1 1)
hex (45 55 75 64 48 57 76 67) (10 10 10) simpleGrading (1 1 1)
hex (40 45 64 59 42 48 67 60) (10 10 10) simpleGrading (1 1 1)
hex (37 40 59 56 39 42 60 58) (10 10 10) simpleGrading (1 1 1)
hex (42 48 22 14 40 45 19 12) (10 10 10) simpleGrading (1 1 1)
hex (42 40 12 14 39 37 8 10) (10 10 10) simpleGrading (1 1 1)
hex (45 48 22 19 55 57 35 34) (10 10 10) simpleGrading (1 1 1)
hex (19 12 2 7 22 14 3 9) (10 10 10) simpleGrading (1 1 1)
hex (12 8 0 2 14 10 1 3) (10 10 10) simpleGrading (1 1 1)
hex (34 19 7 26 35 22 9 28) (10 10 10) simpleGrading (1 1 1)
);

edges
(
);

patches
(
patch xmin
(

(26 28 9 7)
(28 31 15 9)
(31 33 18 15)
(33 36 24 18)
(7 9 3 2)
(9 15 5 3)
(15 18 11 5)
(18 24 17 11)
(2 3 1 0)
(3 5 4 1)
(5 11 6 4)
(11 17 13 6)
)
patch zmax
(

(70 50 52 72)
(50 25 29 52)
(25 13 17 29)
(72 52 54 74)
(52 29 32 54)
(29 17 24 32)
(74 54 69 79)
(54 32 44 69)
(32 24 36 44)

)
patch zmin
(
(0 8 12 2)
(8 37 40 12)
(37 56 59 40)
(2 12 19 7)
(12 40 45 19)
(40 59 64 45)
(7 19 34 26)
(19 45 55 34)
(45 64 75 55)
)

patch ymax
(

(13 25 20 6)
(25 50 47 20)
(50 70 65 47)
(6 20 16 4)
(20 47 43 16)
(47 65 62 43)
(4 16 10 1)
(16 43 39 10)
(43 62 58 39)
(1 10 8 0)
(10 39 37 8)
(39 58 56 37)
)
patch xmax
(
(56 58 60 59)
(58 62 66 60)
(62 65 68 66)
(65 70 72 68)
(59 60 67 64)
(60 66 71 67)
(66 68 73 71)
(68 72 74 73)
(64 67 76 75)
(67 71 77 76)
(71 73 78 77)
(73 74 79 78)
)
patch ymin
(

(79 69 63 78)
(69 44 41 63)
(44 36 33 41)
(78 63 61 77)
(63 41 38 61)
(41 33 31 38)
(77 61 57 76)
(61 38 35 57)
(38 31 28 35)
(76 57 55 75)
(57 35 34 55)
(35 28 26 34)

)
);

mergePatchPairs
(
);

wyldckat December 4, 2011 11:14

Greetings ynos,

I'm going to recycle an old answer of mine: http://www.cfd-online.com/Forums/ope...tml#post316670 - post #2 :)

Best regards,
Bruno

ynos December 5, 2011 15:08

blockMesh run and crash
 
2 Attachment(s)
Thanks Wildckat, i maked again the blockMesh and checking with the paraFoam -block, i think everything is ok but when i run have problems ans crash the solver, the solver and conditions are ok because i make other blockMesh and all is ok and run right, but i dont get know the problem in the new blockMesh
Attached both blockMesh
Thanks in advanced for your time

wyldckat December 6, 2011 08:56

Hi ynos,

I'm sorry, but I'll only be able to try to look at this in a couple of days :(

Good luck!
Bruno

ynos December 7, 2011 05:17

Ok Bruno, thanks for everything

wyldckat December 12, 2011 17:57

Hi ynos,

Unfortunately I haven't been able to get any time to test your "blockMeshDict" to try and figure out what the problem is. Have you managed to fix the problem?

Best regards,
Bruno

ynos December 13, 2011 06:36

Hi Bruno, i just check the blockMesh again and its ok, the problem was with high speed
Thanks for everythink
Have a nice day


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