[noble6ix]

using the pitzDaily tutorial, tried importing my own mesh and running simpleFoam to test it but received an error after computing Uz:

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2206                                  |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : _76d719d1e6-20220624 OPENFOAM=2206 version=v2206
Arch   : "LSB;label=32;scalar=64"
Exec   : simpleFoam
Date   : Oct 28 2022
Time   : 14:07:40
Host   : tinkercliffs1
PID    : 149462
I/O    : uncollated
Case   : /home/jag21791/OpenFOAM-v2206/run/pitzDaily
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

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

Create mesh for time = 0


SIMPLE: convergence criteria
    field p	 tolerance 0.01
    field U	 tolerance 0.001
    field "(k|epsilon|omega|f|v2)"	 tolerance 0.001

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 kEpsilon
RAS
{
    RASModel        kEpsilon;
    turbulence      on;
    printCoeffs     on;
    Cmu             0.09;
    C1              1.44;
    C2              1.92;
    C3              0;
    sigmak          1;
    sigmaEps        1.3;
}

No MRF models present

No finite volume options present

Starting time loop

streamLine streamlines:
    Employing velocity field U
    automatic track length specified through number of sub cycles : 5

Time = 1

smoothSolver:  Solving for Ux, Initial residual = 1, Final residual = 4.16282e+07, No Iterations 1000
smoothSolver:  Solving for Uy, Initial residual = 1, Final residual = 9.73246e+06, No Iterations 1000
smoothSolver:  Solving for Uz, Initial residual = 0.999858, Final residual = 0.0456548, No Iterations 1
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in /lib64/libpthread.so.0
#3  Foam::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
#4  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
#5  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
#7  Foam::fvMatrix<double>::solveSegregatedOrCoupled(Foam::dictionary const&) at ??:?
#8  Foam::fvMesh::solve(Foam::fvMatrix<double>&, Foam::dictionary const&) const at ??:?
#9  ? at ??:?
#10  __libc_start_main in /lib64/libc.so.6
#11  ? at ??:?
Floating point exception (core dumped)

I ran checkMesh before this and received an Ok. Here is the output of checkMesh:

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2206                                  |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : _76d719d1e6-20220624 OPENFOAM=2206 version=v2206
Arch   : "LSB;label=32;scalar=64"
Exec   : checkMesh
Date   : Oct 28 2022
Time   : 14:04:44
Host   : tinkercliffs1
PID    : 90255
I/O    : uncollated
Case   : /home/jag21791/OpenFOAM-v2206/run/pitzDaily
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

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

Create mesh for time = 0

Time = 0

Mesh stats 
    points:           30762
    internal points:  0
    faces:            60680
    internal faces:   29920
    cells:            15100
    faces per cell:   6
    boundary patches: 6
    point zones:      0
    face zones:       0
    cell zones:       0

Overall number of cells of each type:
    hexahedra:     15100
    prisms:        0
    wedges:        0
    pyramids:      0
    tet wedges:    0
    tetrahedra:    0
    polyhedra:     0

Checking topology...
    Boundary definition OK.
    Cell to face addressing OK.
    Point usage OK.
    Upper triangular ordering OK.
    Face vertices OK.
    Number of regions: 1 (OK).

Checking patch topology for multiply connected surfaces...
    Patch               Faces    Points   Surface topology                  
    centerline          120      244      ok (non-closed singly connected)  
    farField            170      342      ok (non-closed singly connected)  
    inlet               70       142      ok (non-closed singly connected)  
    outlet              110      222      ok (non-closed singly connected)  
    sideWedge           90       182      ok (non-closed singly connected)  
    symmetry            30200    30762    ok (non-closed singly connected)  

Checking faceZone topology for multiply connected surfaces...
    No faceZones found.

Checking basic cellZone addressing...
    No cellZones found.

Checking geometry...
    Overall domain bounding box (-2 0 0) (5 8.15296 0.05)
    Mesh has 3 geometric (non-empty/wedge) directions (1 1 1)
    Mesh has 3 solution (non-empty) directions (1 1 1)
    Boundary openness (-3.84497e-18 -2.46502e-18 4.94153e-16) OK.
    Max cell openness = 2.90805e-16 OK.
    Max aspect ratio = 50.4182 OK.
    Minimum face area = 2.04966e-05. Maximum face area = 0.0455154.  Face area magnitudes OK.
    Min volume = 1.02483e-06. Max volume = 0.00164667.  Total volume = 2.82968.  Cell volumes OK.
    Mesh non-orthogonality Max: 13.1711 average: 0.817124
    Non-orthogonality check OK.
    Face pyramids OK.
    Max skewness = 0.309378 OK.
    Coupled point location match (average 0) OK.

Mesh OK.

End

What could be causing this error? Thanks in advance

[noble6ix]

Update: since the residuals were so high on the velocity, I modified my initial conditions to change the wall functions to non-wall functions, mainly of zeroGradient type. Greatly reduced residuals but produces the same error