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Running first iteration issue

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Old   April 29, 2020, 09:13
Angry Running first iteration issue
  #1
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Julien
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Hi, I have noticed somthing wrong with my export to OpenFOAM from the mesh software Pointwise. When I create a mesh, even the simplest one (a rectangle with inlet outlet and walls), the simulation crashes giving me the following :

Code:
/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  5.x                                   |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
/*   Windows 32 and 64 bit porting by blueCAPE: http://www.bluecape.com.pt   *\
|  Based on Windows porting (2.0.x v4) by Symscape: http://www.symscape.com   |
\*---------------------------------------------------------------------------*/
Build  : 5.x-963176928289
Exec   : C:/PROGRA~1/BLUECF~1/OpenFOAM-5.x/platforms/mingw_w64GccDPInt32Opt/bin/simplefoam.exe
Date   : May 06 2020
Time   : 14:24:30
Host   : "LAPTOP-BBJV64ED"
PID    : 4452
I/O    : uncollated
Case   : C:/Users/juhus/OneDrive/Bureau/t
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

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

Create mesh for time = 0


SIMPLE: no convergence criteria found. Calculations will run for 1000 steps.

Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type RAS
Selecting RAS turbulence model SpalartAllmaras
Selecting patchDistMethod meshWave
RAS
{
    RASModel        SpalartAllmaras;
    turbulence      on;
    printCoeffs     on;
    sigmaNut        0.66666;
    kappa           0.41;
    Cb1             0.1355;
    Cb2             0.622;
    Cw2             0.3;
    Cw3             2;
    Cv1             7.1;
    Cs              0.3;
}

No MRF models present

No finite volume options present


Starting time loop

Time = 1

smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 1.01808483039e-005, No Iterations 1
smoothSolver:  Solving for Uy, Initial residual = 0.999187340076, Final residual = 0.477171144829, No Iterations 1000
Generating stack trace...


Backtrace:
        ZN10StackTraceC1Ev [0x705c1465+0x25]
                 module: C:\PROGRA~1\BLUECF~1\ThirdParty-5.x\platforms\mingw_w64GccDPInt32\lib\libstack_trace.dll
        ZN4Foam5error10printStackERNS_7OstreamE [0xa51c88+0x218]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libOpenFOAM.dll
        ZN4Foam6sigFpe13sigFpeHandlerEi [0xa52af3+0x33]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libOpenFOAM.dll
        (No symbol) [0x403cad]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        _C_specific_handler [0x7ff82cc48048+0x98]
                 module: C:\WINDOWS\System32\msvcrt.dll
        0_chkstk [0x7ff82e0611cf+0x11f]
                 module: C:\WINDOWS\SYSTEM32\ntdll.dll
        RtlRaiseException [0x7ff82e02a209+0x399]
                 module: C:\WINDOWS\SYSTEM32\ntdll.dll
        KiUserExceptionDispatcher [0x7ff82e05fe3e+0x2e]
                 module: C:\WINDOWS\SYSTEM32\ntdll.dll
        ZNK4Foam10GAMGSolver5scaleERNS_5FieldIdEES3_RKNS_9lduMatrixERKNS_10FieldFieldIS1_dEERKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h [0x907a70+0xc0]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libOpenFOAM.dll
        ZNK4Foam10GAMGSolver6VcycleERKNS_7PtrListINS_9lduMatrix8smootherEEERNS_5FieldIdEERKS8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h [0x90b0f0+0xe80]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libOpenFOAM.dll
        ZNK4Foam10GAMGSolver5solveERNS_5FieldIdEERKS2_h [0x90c92f+0x36f]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libOpenFOAM.dll
        ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE [0x65ef1c17+0x127]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\lib\libfiniteVolume.dll
        (No symbol) [0x42d551]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        (No symbol) [0x42d84c]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        (No symbol) [0x44e342]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        (No symbol) [0x4013f7]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        (No symbol) [0x40152b]
                 module: C:\PROGRA~1\BLUECF~1\OpenFOAM-5.x\platforms\mingw_w64GccDPInt32Opt\bin\simplefoam.exe
        BaseThreadInitThunk [0x7ff82de57bd4+0x14]
                 module: C:\WINDOWS\System32\KERNEL32.DLL
        RtlUserThreadStart [0x7ff82e02ce51+0x21]
                 module: C:\WINDOWS\SYSTEM32\ntdll.dll
I don't understand why the simulation crashes, while if i do the same mesh with snappyhexmesh (nothing else changes), the calculation runs. I've linked the files so may someone could tell me what is going on ...
Attached Files
File Type: zip test.zip (189.2 KB, 4 views)

Last edited by Elboy; May 6, 2020 at 09:35. Reason: Evolution of the issue
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Old   May 6, 2020, 09:30
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Simon
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Do you have the boundarys right?
You need two empty Boundarys in a 2D-Mesh.
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Old   May 6, 2020, 09:37
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Can you explain me why I need two ? I based my simulation on the ones from the tutorials, I let the files in attached so you might be sure if that's the mistake I made (I'm quite new to OpenFOAM)
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Old   May 6, 2020, 17:28
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imho, not enough info to reproduce or understand the issue.
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Old   May 7, 2020, 10:05
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Chris Sideroff
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Renumber the mesh and it will run:

Code:
renumberMesh -constant -overwrite
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