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FOAM Warning : Field " " not found in database for averaging

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Old   July 22, 2023, 14:13
Default FOAM Warning : Field " " not found in database for averaging
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i have created source code to define fields/terms, then compiling these src and using the later in the post-processing by using `rhoPimpleFoam`. I am using OpenFOAM 1612+

The problem that when i am trying to write these fields in the `field` for averaging function in the `controlDict` , it is returning me always this warning

--> FOAM Warning : 
    From function void Foam::functionObjects::fieldAverage::initialize()
    in file fieldAverage/fieldAverage.C at line 95
    Field UU not found in database for averaging
But it is showing in the the start that , UU could be found as follow

Starting time loop

fieldAverage fieldAverage1:
    Restarting averaging for fields:
        U: starting averaging at time 0
        p: starting averaging at time 0
        T: starting averaging at time 0
        rho: starting averaging at time 0
        UU: starting averaging at time 0
I am adding it in the `controlDict` as follow:



        type fieldAverage;
        libs ("" "");
        writeControl writeTime;


                mean        on;
                prime2Mean  on;
                base        time;


Where `UU` is one of the fields that has been defined in src. It is working with no warnings for `U`, `p` and `rho`.
I have tried everything, i have used `write()` function to write it in the desk as `UU.write();` .
The compiling proceed with no errors or warnings.


when i have tried to call `UU' in the function before `fieldAverage`, it is calculating UU normally with no problems, but still the same warning when averaging:
Current time: 0.02
calc() function called
UU calc starting
Calculated UU tensor: dimensions      [1 -1 -2 0 0 0 0];

internalField   nonuniform List<tensor> 
Thank you very much if someone could suggest or help.

Best regards,

Last edited by elbatawy; July 24, 2023 at 09:56. Reason: improving the writing way
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Old   July 24, 2023, 13:41
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Mark Olesen
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Check that your "UU" field is registered and also that it is still in scope (ie, you haven't accidentally destroyed it).
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controldict, openfaom, rhopimplefoam

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