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[blockMesh] checkMesh Floating point exception error |
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July 31, 2015, 15:26 |
checkMesh Floating point exception error
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New Member
Daniel Madeira de Almeida
Join Date: Jun 2015
Posts: 4
Rep Power: 11 |
Hello,
I am trying to create a mesh of a wedge with a small void part representing a nozzle. I have the blockMeshDict, and p and U at 0. I created the mesh, but when I try to run checkMesh I get the following message: /*---------------------------------------------------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ Build : 2.2.2-9240f8b967db Exec : checkMesh Date : Jul 31 2015 Time : 14:16:43 Host : "daniel-N450-P-BE55P1" PID : 6298 Case : /home/daniel/OpenFOAM/daniel-2.2.2/mit/nozzle2D 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 Create polyMesh for time = 0 #0 Foam::error:rintStack(Foam::Ostream&) at ??:? #1 Foam::sigFpe::sigHandler(int) at ??:? #2 in "/lib/x86_64-linux-gnu/libc.so.6" #3 Foam:olyMesh::calcDirections() const at ??:? #4 Foam:olyMesh:olyMesh(Foam::IOobject const&) at ??:? #5 at ??:? #6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #7 at ??:? Floating point exception I could open the mesh on paraview without loading the pressure and velocity fields, as it occurred in other error: --> FOAM FATAL IO ERROR: patch type 'patch' not constraint type 'wedge' for patch front of field U in file "/home/daniel/OpenFOAM/daniel-2.2.2/mit/nozzle2D/0/U" Here is the blockMeshDict: /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object blockMeshDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // convertToMeters 0.001; vertices ( (0 0 0) //vertex number 0 (19.3937 0 0) //vertex number 1 (300 0 0) //vertex number 2 (0 -0.138496 3.1720) //vertex number 3 (0 0.138496 3.1720) //vertex number 4 (19.3937 -0.138496 3.1720) //vertex number 5 (19.3937 0.138496 3.1720) //vertex number 6 (300 -0.138496 3.1720) //vertex number 7 (300 0.138496 3.1720) //vertex number 8 (0 -0.207748 4.7581) //vertex number 9 (0 0.207748 4.7581) //vertex number 10 (6.4646 -0.207748 4.7581) //vertex number 11 (6.4646 0.207748 4.7581) //vertex number 12 (19.3937 -0.207748 4.7581) //vertex number 13 (19.3937 0.207748 4.7581) //vertex number 14 (300 -0.207748 4.7581) //vertex number 15 (300 0.207748 4.7581) //vertex number 16 (0 -2.1810 49.952) //vertex number 17 (0 2.1810 49.952) //vertex number 18 (6.4646 -2.1810 49.952) //vertex number 19 (6.4646 2.1810 49.952) //vertex number 20 (19.3937 -2.1810 49.952) //vertex number 21 (19.3937 2.1810 49.952) //vertex number 22 (300 -2.1810 49.952) //vertex number 23 (300 2.1810 49.952) //vertex number 24 ); blocks ( hex (0 1 1 0 3 5 6 4) (20 1 6) simpleGrading (1 1 1) //0 hex (1 2 2 1 5 7 8 6) (280 1 6) simpleGrading (1 1 1) //1 hex (5 7 8 6 13 15 16 14) (280 1 3) simpleGrading (1 1 1) //2 hex (9 11 12 10 17 19 20 18) (6 1 100) simpleGrading (1 1 1) //3 hex (11 13 14 12 19 21 22 20) (14 1 100) simpleGrading (1 1 1) //4 hex (13 15 16 14 21 23 24 22) (280 1 100) simpleGrading (1 1 1) //5 hex (11 5 6 12 11 13 14 12) (14 1 3) simpleGrading (1 1 1) //6 ); edges ( arc 3 4 (0 0 3.17502) arc 5 6 (19.3937 0 3.17502) arc 9 10 (0 0 4.76263) arc 11 12 (6.4646 0 4.76263) arc 17 18 (0 0 49.9996) arc 23 24 (300 0 49.9996) ); patches ( patch inlet ( (0 3 4 0) ) patch outlet ( (2 7 8 2) (7 15 16 8) (15 23 24 16) ) wall wall ( (3 5 6 4) (17 19 20 18) (19 21 22 20) (21 23 24 22) (10 9 17 18) (10 12 11 9) (12 6 5 11) ) wedge front ( (0 1 5 3) (1 2 7 5) (5 7 15 13) (9 11 19 17) (11 13 21 19) (13 15 23 21) (11 5 13 11) ) wedge back ( (0 1 6 4) (1 2 8 6) (6 8 16 14) (10 12 20 18) (12 14 22 20) (14 16 24 22) (12 6 14 12) ) ); mergePatchPairs //merge faces for patches created ( ); // ************************************************** *********************** // p: /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object p; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 2 -2 0 0 0 0]; //dimension [Mass Length Time Temperature Quantity Current Luminous intensity] IMPORTANT: OpenFOAM use rho normalized pressure, divide pressure by density!! internalField uniform 0; boundaryField { inlet { type uniformFixedValue; uniformValue tableFile; tableFileCoeffs { fileName "$FOAM_CASE/inletpressure" outOfBounds clamp; } } outlet { type fixedValue; value uniform 0; } wall { type zeroGradient; } front { type wedge; } back { type wedge; } } // ************************************************** *********************** // U: /*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volVectorField; object U; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; //dimension of the variable [Mass Length Time Temperature Quantity Current Luminous intensity] internalField uniform (0 0 0); boundaryField { inlet { type zeroGradient; } outlet { type zeroGradient; } wall { type fixedValue; value uniform (0 0 0); //no slip condition, 0m/s velocity } front { type wedge; } back { type wedge; } } // ************************************************** *********************** // I also uploaded a picture of the detail of the wedge. The nozzle part. Has anyone seen something similar before? Thanks in advance, Daniel |
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