[anton_lias]

Hello,

I have got a problem with a case using GGI.

Every time step I get this message

From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1315 on slave: 690

I think, this should be a problem with the mesh. I recreated the mesh a couple of times, but I get this error every time (the number of the Uncovered faces are not always the same). Now I do not know what to do and hope, that anybody can help me.

What I did:
Use Salome 6.4.0 to create the geometry
create mesh with “Netgen 1D-2D-3D”
export meshes (insideZone and outsideZone) as *.unv
create two cases using “ideasUnvToFoam”
use “mergeMeshes” to combine the meshes in one case
modify “constant\polyMesh\boundary”
use “setSet” and “setsToZones”

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM Extend Project: Open source CFD        |
|  \\    /   O peration     | Version:  1.6-ext                               |
|   \\  /    A nd           | Web:      www.extend-project.de                 |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 1.6-ext-26372bc2796a
Exec   : pimpleDyMFoam
Date   : Aug 24 2012
Time   : 16:16:55
Host   : TUWZI2W-D0X-PST
PID    : 10415
Case   : /home/software/OpenFOAM/paul-1.6-ext/run/mycases/fermenter_v24_01_combined
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

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

Create dynamic mesh for time = 0.01

Selecting dynamicFvMesh mixerGgiFvMesh
Initializing the GGI interpolator between master/shadow patches: outerSlider/innerSlider

    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1315 on slave: 690
void mixerGgiFvMesh::addZonesAndModifiers() : Zones and modifiers already present.  Skipping.
Mixer mesh:
    origin: (1 0 0)
    axis  : (1 0 0)
    rpm   : 50
Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type RASModel
Selecting RAS turbulence model kEpsilon
kEpsilonCoeffs
{
    Cmu             0.09;
    C1              1.44;
    C2              1.92;
    sigmaEps        1.3;
}

Reading field rAU if present


Starting time loop

Courant Number mean: 3.6968 max: 637.646 velocity magnitude: 30.3198
deltaT = 3.92065e-06
Creating ggi check
Time = 0.0100039


    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1315 on slave: 690
DILUPBiCG:  Solving for Ux, Initial residual = 0.27222, Final residual = 4.24231e-07, No Iterations 6
DILUPBiCG:  Solving for Uy, Initial residual = 0.28364, Final residual = 3.70897e-07, No Iterations 6
DILUPBiCG:  Solving for Uz, Initial residual = 0.363158, Final residual = 5.13203e-07, No Iterations 6
GAMG:  Solving for p, Initial residual = 0.89997, Final residual = 0.00859689, No Iterations 5
time step continuity errors : sum local = 2.99334e-05, global = -2.62597e-06, cumulative = -2.62597e-06
DILUPBiCG:  Solving for epsilon, Initial residual = 0.0143684, Final residual = 9.83975e-06, No Iterations 7
DILUPBiCG:  Solving for k, Initial residual = 0.00133751, Final residual = 1.03028e-07, No Iterations 4
DILUPBiCG:  Solving for Ux, Initial residual = 0.530271, Final residual = 9.69288e-07, No Iterations 11
DILUPBiCG:  Solving for Uy, Initial residual = 0.591634, Final residual = 2.69504e-07, No Iterations 12
DILUPBiCG:  Solving for Uz, Initial residual = 0.622604, Final residual = 2.78513e-07, No Iterations 12
GAMG:  Solving for p, Initial residual = 0.849046, Final residual = 5.79077e-08, No Iterations 21
time step continuity errors : sum local = 2.17523e-06, global = 2.17502e-06, cumulative = -4.50945e-07
DILUPBiCG:  Solving for epsilon, Initial residual = 0.012916, Final residual = 4.91199e-06, No Iterations 8
DILUPBiCG:  Solving for k, Initial residual = 0.000866339, Final residual = 8.20168e-08, No Iterations 4
ExecutionTime = 0.38 s  ClockTime = 0 s

Courant Number mean: 0.00304464 max: 0.572689 velocity magnitude: 36.3188
deltaT = 3.423e-06
GGI pair (outerSlider, innerSlider) : 3.6525e-05 3.99423e-05 Diff = 2.25326e-07 or 0.616908 %
Time = 0.0100073


    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1315 on slave: 690

[..]

    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1316 on slave: 690
DILUPBiCG:  Solving for Ux, Initial residual = 0.169897, Final residual = 1.8999e-07, No Iterations 4
DILUPBiCG:  Solving for Uy, Initial residual = 0.147535, Final residual = 6.9539e-07, No Iterations 4
DILUPBiCG:  Solving for Uz, Initial residual = 0.171707, Final residual = 5.64676e-08, No Iterations 4
GAMG:  Solving for p, Initial residual = 0.989815, Final residual = 0.00986916, No Iterations 4
time step continuity errors : sum local = 0.000160521, global = -3.43993e-05, cumulative = -0.003965
DILUPBiCG:  Solving for epsilon, Initial residual = 0.994815, Final residual = 1.53822e-06, No Iterations 2
bounding epsilon, min: -3.74132e+06 max: 9.77213e+07 average: 25856.5
DILUPBiCG:  Solving for k, Initial residual = 0.242767, Final residual = 2.40947e-07, No Iterations 6
bounding k, min: -0.00899587 max: 1.39533 average: 0.000601679
DILUPBiCG:  Solving for Ux, Initial residual = 0.677434, Final residual = 0.199234, No Iterations 1000
DILUPBiCG:  Solving for Uy, Initial residual = 0.7177, Final residual = 6.52883e-05, No Iterations 1000
DILUPBiCG:  Solving for Uz, Initial residual = 0.590087, Final residual = 7.57919e-07, No Iterations 51
GAMG:  Solving for p, Initial residual = 0.906238, Final residual = 5.93822e-08, No Iterations 19
time step continuity errors : sum local = 7.89548e-05, global = 7.89534e-05, cumulative = -0.00388605
DILUPBiCG:  Solving for epsilon, Initial residual = 0.444686, Final residual = 2.26454e-05, No Iterations 1000
bounding epsilon, min: -1.12496e+07 max: 4.17195e+07 average: 32411
DILUPBiCG:  Solving for k, Initial residual = 0.73167, Final residual = 5.19562e-08, No Iterations 5
bounding k, min: -0.0022751 max: 517.443 average: 0.0937696
ExecutionTime = 823.48 s  ClockTime = 850 s

Courant Number mean: 0.028222 max: 21.805 velocity magnitude: 13755
deltaT = 4.56191e-09
GGI pair (outerSlider, innerSlider) : 0.00467951 0.00656301 Diff = 0.000161192 or 3.44463 %
--> FOAM Warning : 
    From function Time::operator++()
    in file db/Time/Time.C at line 692
    Increased the timePrecision from 6 to 7 to distinguish between timeNames at time 0.0170957
Time = 0.01709568


    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1316 on slave: 690
DILUPBiCG:  Solving for Ux, Initial residual = 0.821533, Final residual = 1.2953e-07, No Iterations 6
DILUPBiCG:  Solving for Uy, Initial residual = 0.507271, Final residual = 1.32413e-07, No Iterations 5
DILUPBiCG:  Solving for Uz, Initial residual = 0.71308, Final residual = 2.93907e-08, No Iterations 6
GAMG:  Solving for p, Initial residual = 0.861812, Final residual = 0.00661471, No Iterations 4
time step continuity errors : sum local = 5.48611e-06, global = -1.75977e-06, cumulative = -0.00388781
DILUPBiCG:  Solving for epsilon, Initial residual = 0.982284, Final residual = 1.7578e-06, No Iterations 6
bounding epsilon, min: -1.23187e+06 max: 6.99878e+08 average: 210777
DILUPBiCG:  Solving for k, Initial residual = 0.996058, Final residual = 1.20035e-07, No Iterations 6
bounding k, min: -0.0251213 max: 2.22718e+06 average: 1584.95
DILUPBiCG:  Solving for Ux, Initial residual = 0.85408, Final residual = 0.000626782, No Iterations 1000
DILUPBiCG:  Solving for Uy, Initial residual = 0.872133, Final residual = 0.000576242, No Iterations 1000
DILUPBiCG:  Solving for Uz, Initial residual = 0.938139, Final residual = 0.000156107, No Iterations 1000
GAMG:  Solving for p, Initial residual = 0.352836, Final residual = 9.93542e-08, No Iterations 24
time step continuity errors : sum local = 0.00172566, global = -0.00172565, cumulative = -0.00561346
DILUPBiCG:  Solving for epsilon, Initial residual = 0.0381263, Final residual = 1.23891, No Iterations 1000
bounding epsilon, min: -4.4782e+11 max: 1.41228e+12 average: -6.73551e+08
DILUPBiCG:  Solving for k, Initial residual = 0.881725, Final residual = 6.31519e-07, No Iterations 10
bounding k, min: -2.47191 max: 1.20461e+10 average: 9.65617e+06
ExecutionTime = 826.62 s  ClockTime = 854 s

Courant Number mean: 0.0439595 max: 17.5444 velocity magnitude: 1.04452e+06
deltaT = 1.3001e-10
GGI pair (outerSlider, innerSlider) : 0.579687 0.45987 Diff = -0.153643 or 26.5044 %
--> FOAM Warning : 
    From function Time::operator++()
    in file db/Time/Time.C at line 692
    Increased the timePrecision from 7 to 8 to distinguish between timeNames at time 0.0170957
Time = 0.017095682


    From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
    in file /home/paul/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
    Uncovered faces found.  On master: 1316 on slave: 690
DILUPBiCG:  Solving for Ux, Initial residual = 0.595055, Final residual = 3.4495e-07, No Iterations 6
DILUPBiCG:  Solving for Uy, Initial residual = 0.572009, Final residual = 4.81798e-07, No Iterations 6
DILUPBiCG:  Solving for Uz, Initial residual = 0.592859, Final residual = 1.46143e-07, No Iterations 7
GAMG:  Solving for p, Initial residual = 0.987592, Final residual = 1.3827e+12, No Iterations 1000
time step continuity errors : sum local = 1.04765e+21, global = 1.04765e+21, cumulative = 1.04765e+21
DILUPBiCG:  Solving for epsilon, Initial residual = 1, Final residual = 134.792, No Iterations 1000
bounding epsilon, min: -1.05083e+40 max: 1.0207e+40 average: -5.85537e+34
DILUPBiCG:  Solving for k, Initial residual = 1, Final residual = 5.49849e+17, No Iterations 1000
bounding k, min: -2.19037e+51 max: 1.03233e+55 average: 1.08549e+51