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-   -   fieldAverage restarts mid-run (http://www.cfd-online.com/Forums/openfoam-solving/96970-fieldaverage-restarts-mid-run.html)

gfilip February 6, 2012 10:56

fieldAverage restarts mid-run
 
Hello,

I am using the following fieldAverage in my controlDict (1.7.x):

Code:

   
fieldAverage1
    {
        type            fieldAverage;
        functionObjectLibs ( "libfieldFunctionObjects.so" );
        enabled        true;
        cleanRetart    false;
        outputControl  outputTime;
        fields
        (
            U
            {
                mean        on;
                prime2Mean  on;
                base        time;
            }

            p
            {
                mean        on;
                prime2Mean  on;
                base        time;
            }
        );
    }

I restarted the case from a previous timestep which contained time-averaged quantities. Upon restarting, the log does say:

Code:

fieldAverage: restarting averaging for fields:
    U iters = 11001 time = 0.040993
    p iters = 11001 time = 0.040993

So everything looks fine. As I monitor the written timesteps, I notice that /uniform/fieldAveragingProperties.gz shows the number of iters and total time increasing as expected. This continues until the averaging restarts in the middle of the run with the log file message: regIOobject::readIfModified(): for the controlDict. I did not change anything in the fieldAverage section, but only the writeInterval. So now the total number of iters and time is back to 0 and the averaging has been taking place ever since that random restart.

Could such a restart be caused by modifying parts of the controlDict which are not affecting the fieldAverage part? Is there anything I can do to combine these two time-averaged sets?


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