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| Reporter | user687 | Assigned To | user2 | |
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| Priority | normal | Severity | feature | Reproducibility | always |
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| Status | resolved | Resolution | fixed | |
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| Platform | Linux | OS | Redhat | OS Version | 5.6 |
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| Summary | 0000898: Restarting averaging fields with fieldAverage, without reseting is not working |
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| Description | I am using the fieldAverage function to calculate average quantities. I am using an updated version of OpenFOAM 2.2.x with the necessary fixes for the restarting to work, since there was a bug in the code (see http://www.openfoam.org/mantisbt/view.php?id=854). Restarting works just fine, my problem is that when I restart from a previous calculation, it seems that the averaging is not continuous as it should be. In order to look at the time evolution of a mean value I am using the probeFunction.
I think that openFoam restarts the averaging of pMean, even though I am setting
resetOnOutput false;
resetOnRestart false;
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| Steps To Reproduce | I can reproduce my problem using the cavity tutorial. I start averaging from the beginning up to 0.5 sec of simulation time. Then I restart the simulation for another 0.5 sec. Below are the functions objects used at the end of the controlDict:
functions
{
fieldAverage1
{
type fieldAverage;
functionObjectLibs ( "libfieldFunctionObjects.so" );
enabled true;
outputControl outputTime;
resetOnOutput false;
resetOnRestart false;
fields
(
p
{
mean on;
prime2Mean off;
base time;
}
);
}
probesP
{
type probes;
functionObjectLibs ("libsampling.so");
probeLocations
(
(0.05 0.05 0.0)
);
fields
(
p pMean
);
}
}
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| Additional Information | I have attached a figure showing the time evolution of p and pMean, using the data written from the probe function for a point at x=0.05, y=0.05. The figure also shows, the correct running average that I have calculated based on p values. Up to t=0.5 sec, the calculated running average and pMean from the probes match exactly. However, at t=0.5, when I restart the case, a clear discontinuous change can be seen in the evolution of pMean. Nevertheless, I can reproduce the discontinuity of pMean shown from the probes values, if I restart the averaging in my calculations, at t=0.5.
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| Tags | No tags attached. |
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