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Problems with interfaceHeight

Hello Foamers!

I am facing a problem since I found the postProcessing tool "interfaceHeight". Does anybody of you has experience with that? I get the following error message:

Code:

Create time



Create mesh for time = 0



Time = 0



Reading fields:



Executing functionObjects





--> FOAM FATAL ERROR:



    request for uniformDimensionedVectorField g from objectRegistry region0 failed

    available objects of type uniformDimensionedVectorField are

0()



    From function const Type &Foam::objectRegistry::lookupObject(const Foam::word &) const [with Type = Foam::UniformDimensionedField<Foam::Vector<double>>]

    in file /sw/taurus/applications/OpenFOAM/OpenFOAM-5.0/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 193.



FOAM aborting



#0  Foam::error::printStack(Foam::Ostream&) at ??:?

#1  Foam::error::abort() at ??:?

#2  ? at turbulentFluidThermoModels.C:?

#3  ? at interfaceHeight.C:?

#4  Foam::functionObjects::interfaceHeight::write() at ??:?

#5  Foam::functionObjects::timeControl::write() at ??:?

#6  Foam::functionObjectList::execute() at ??:?

#7  ? at postProcess.C:?

#8  ? at ??:?

#9  __libc_start_main in "/usr/lib64/libc.so.6"

#10  ? at ??:?

Aborted

For my understanding g can only be a uniformDimensionedVectorField?! What else should it be?

interfaceHeight-file:

Code:

#includeEtc "caseDicts/postProcessing/probes/interfaceHeight.cfg"



alpha      alpha.water;

locations

(

    (0 0 0)

);

Here is my g-file:

Code:

FoamFile

{

    version     2.0;

    format      ascii;

    class       uniformDimensionedVectorField;

    location    "constant";

    object      g;

}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //



dimensions      [0 1 -2 0 0 0 0];

value           (0 0 -9.81);



// ************************************************************************* //

I am using OpenFoam/5.0 for postProcessing. The simulation is done with interFoam. Maybe one of you had the same experiences?

Thanks in advance.

Try running the postprocessing with the solver. I do not think your saved solutions have all the information interfaceHeight needs.

Code:

interFoam -postProcess -func interfaceHeight

interface height along a slant wall

I am working to obtain contact line motion in a container. I am thinking of obtaining interface height along a wall and then for velocity, I will take the difference of the location of 2 subsequent timestep divided by time difference. But I am unable to get the location of interface along the slant wall. It would be helpful if anyone can provide any suggestion regarding it.

I have used this code in controldict

functions
{
#includeFunc residuals
#includeFunc interfaceHeight
interfaceHeight1
{
type interfaceHeight;
libs ("libfieldFunctionObjects.so");
alpha alpha.water;
locations ((0 0 0));
direction (0.0064 0.024 0);
}
}

direction in this I assumed it to be ray from ( 0 0 0) to (0.0064 0.024 0). That's my slant wall direction.

Thanks

Regards