[AlxB]

Hello,
I try to run a multiphase unsteady case which includes non Conformal Coupling, similar to the Mixer Vessel Horizontal 2D tutorial, but foamRun cannot start, in serial as in parallel:

here is the log.foamRun in parallel:

...
Pstream initialised with:
    floatTransfer      : false
    nProcsSimpleSum    : 0
    commsType          : nonBlocking
    polling iterations : 0
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 = 0.1

patchToPatch: Calculating couplings between ...
    source patch nonCouple1 with 1480 faces and ...
    target patch nonCouple2 with 1480 faces
    Source min/average/max coverage = 1/1/1
    Target min/average/max coverage = 1/1/1
    Source average openness/error/depth/angle = 6.67161e-17/9.51971e-14/2.15455e-15/2.67494e-07
    Source max openness/error/depth/angle = 4.10172e-16/2.77556e-11/1.00365e-13/1.47878e-06
    2960 couplings calculated in 0.142547s
fvMeshStitcher: Connecting
    Cell min/average/max openness = 0/1.3165e-17/2.69572e-16
    Cell min/average/max projected volume fraction = 0/5.41624e-15/2.04614e-13
Selecting fvMeshMover motionSolver
Selecting motion solver: solidBody
Selecting solid-body motion function rotatingMotion
Selecting solver incompressibleVoF
Selecting viscosity model Newtonian
Selecting viscosity model Newtonian
No MRF models present

Restarting alpha
Courant Number mean: 7.78143e-20 max: 6.48268e-18
Interface Courant Number mean: 0 max: 0
Selecting turbulence model type RAS
    Selecting RAS turbulence model kOmegaSST
Selecting patchDistMethod meshWave
DICPBiCGStab:  Solving for pcorr, Initial residual = 0.00121499, Final residual = 1.21272e-07, No Iterations 137

PIMPLE: No convergence criteria found
PIMPLE: Operating solver in transient mode with 1 outer corrector
PIMPLE: Operating solver in PISO mode

Starting time loop

End

Finalising parallel run

and here is the controlDict:

/*--------------------------------*- C++ -*----------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  13
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
FoamFile
{
    format      ascii;
    class       dictionary;
    location    "system";
    object      controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

solver     		incompressibleVoF; //interFoam;

startFrom       latestTime;
startTime       0;
stopAt          endTime;
// stopAt          writeNow;
endTime         0.1;//20;

deltaT          1e-7;
writeControl    adjustableRunTime;
writeInterval   0.01;
purgeWrite      0;

writeFormat     ascii;
writePrecision  6;
writeCompression off;

timeFormat      general;
timePrecision   6;
runTimeModifiable yes;

adjustTimeStep  yes;
maxCo           0.5;
maxAlphaCo      0.25;
maxDeltaT       1e-3;

functions
{
	#include "FOwriteFields"
	// #include "FOsampleU"
	// #include "FOsampleP_rgh"
	
	// #include "FOsampleAlphaPhase1"	
	// #include "FOsampleUMean"
	// #include "FOsampleUPrime2Mean"
}

what could be the reason for that ? where to look at ?
many thanks in advance for the help

[Pappelau]

This one is easy you start from LATESTTime which is 0.1 and stop at 0.1 so what did you expect ? if you want to start from 0 either delete the old solution or write startTime instead of latestTime.

[AlxB]

thank you
the old solution was not deleted. shame on me