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request for uniformDimensionedVectorField g from objectRegistry region0 failed

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Old   April 4, 2021, 03:54
Default request for uniformDimensionedVectorField g from objectRegistry region0 failed
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Dylan James
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hi guys:

I get the following error when I execute the postProcess command. Does anyone know how I can fix this?

Code:
/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2012                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : v2012 OPENFOAM=2012
Arch   : "LSB;label=32;scalar=64"
Exec   : postProcess
Date   : Apr 04 2021
Time   : 15:23:59
Host   : dyfluid
PID    : 3421
I/O    : uncollated
Case   : /home/dyfluid/OpenFOAM/OpenFOAM-v2012/run/waveExampleSolitary
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

Reading fields:

Executing functionObjects


--> FOAM FATAL ERROR: (openfoam-2012)

    request for uniformDimensionedVectorField g from objectRegistry waveExampleSolitary failed
    available objects of type uniformDimensionedVectorField are
0()

    From const Type& Foam::objectRegistry::lookupObject(const Foam::word&, bool) const [with Type = Foam::UniformDimensionedField<Foam::Vector<double> >]
    in file /home/dyfluid/OpenFOAM/openfoam-master/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 463.

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::error::exitOrAbort(int, bool) at ??:?
#2  Foam::UniformDimensionedField<Foam::Vector<double> > const& Foam::objectRegistry::lookupObject<Foam::UniformDimensionedField<Foam::Vector<double> > >(Foam::word const&, bool) const at ??:?
#3  Foam::functionObjects::interfaceHeight::writePositions() at ??:?
#4  Foam::functionObjects::interfaceHeight::write() at ??:?
#5  Foam::functionObjectList::execute() at ??:?
#6  ? in ~/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/bin/postProcess
#7  ? in ~/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/bin/postProcess
#8  __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
#9  ? in ~/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/bin/postProcess
Aborted (core dumped)
this is my controlDict file
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v1812                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "system";
    object      controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

application     interFoam;

startFrom       latestTime;

startTime       0;

stopAt          endTime;

endTime         50.0;

deltaT          0.1;

writeControl    adjustableRunTime;

writeInterval   1;

purgeWrite      0;

writeFormat     ascii;

writePrecision  6;

writeCompression off;

timeFormat      general;

timePrecision   6;

runTimeModifiable yes;

adjustTimeStep  yes;

maxCo           0.65;

maxAlphaCo      0.65;

maxDeltaT       0.05;


functions
{
    interfaceHeight
    {
    	type		interfaceHeight;
    	libs		("libfieldFunctionObjects.so");
    	alpha		alpha.water;
    	locations	((39.85 1 1));
    }
}


// ************************************************************************* //
the version is v2012
the solver is interFoam

I will be appreciate for any advice.

Last edited by dylan_OF; April 5, 2021 at 01:48.
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Old   April 7, 2021, 19:38
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I would guess that the functionObject wants g loaded, but doesn't load it itself. Solvers now should have a postProcess flag, so that things are just loaded (like the gravity vector) but the solver doesn't progress and just post processes. This would be done with something like :

Code:
 <solver> -postProcess -func
So for your case, I'd guess something like :

Code:
 interFoam -postProcess -func interfaceHeight
Looks like something similar is done in this tutorial : https://develop.openfoam.com/Develop...otation/Allrun

Caelan
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Old   April 7, 2021, 20:37
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Dylan James
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Thank you very much for your reply!So far, I've adopted paraview to implement my requirements.But your suggestion is great and comprehensive, I will try it and feedback the result.
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interfaceheight, interfoam, openfoam2012, postprocess

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