| MaySea |
September 23, 2020 11:31 |
fieldAverage1 question
Hi all,
I am trying to run a simulation, where a timeStep is 0.1, the output is saved each 500 time steps (meaning 50s). Additionally, I want to have averages of all the fields each 100 seconds (therefore the average should be calculated each 1000 timeSteps. My timeEnd is 1000, meaning that I want 10 averages (each 100 seconds).
I need to admit that I totally don't get the
restartOnRestart
restartOnOutput
periodicRestart
fields, even after reading the documentation. restartOnRestart seems totally non-intuitive to me, restartOnOutput means that averaging is restarted upon every output I guess and periodicRestart should restart the averaging every x seconds. Are periodicRestart units in timeStep units or rather simulation run time? E.g. if I set it as 100, will it restart every 100 timeSteps or rather 100 s of sim runtime? I realise that these are quite basic questions, but I got lost after multiple attempts.
Here is my control dict, which unfortunately doesn't serve the purpose. Any suggestions how should I amend it? Thanks a million to anyone willing to help.
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.4.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
application pimpleFoam;
startFrom latestTime;
startTime 0;
stopAt endTime;
endTime 1000;
deltaT 0.1;
writeControl timeStep;
writeInterval 500;
purgeWrite 0;
writeFormat ascii;
writePrecision 6;
writeCompression off;
timeFormat general;
timePrecision 6;
runTimeModifiable true;
functions
{
wallShearStress1
{
// Mandatory entries (unmodifiable)
type wallShearStress;
libs ("libfieldFunctionObjects.so");
// Optional entries (runtime modifiable)
patches ("barkley");
// Optional (inherited) entries
writePrecision 8;
writeToFile true;
useUserTime true;
enabled true;
log true;
timeStart 0;
timeEnd 1000;
executeControl timeStep;
executeInterval 1;
writeControl timeStep;
writeInterval 500;
}
fieldAverage1
{
type fieldAverage;
libs ("libfieldFunctionObjects.so");
writeControl writeTime; //maybe timeStep instead?
restartOnRestart false;
restartOnOutput false;
periodicRestart true;
restartPeriod 100;
fields
(
U
{
mean on;
prime2Mean off;
base time; //maybe timeStep?
window 100.0; //maybe 1000 with timeStep as base?
windowName w1;
}
p
{
mean on;
prime2Mean off;
base time;
window 100.0;
windowName w1;
}
k
{
mean on;
prime2Mean off;
base time;
window 100.0;
windowName w1;
}
epsilon
{
mean on;
prime2Mean off;
base time;
window 100.0;
windowName w1;
}
wallShearStress
{
mean on;
prime2Mean off;
base time;
window 100.0;
windowName w1;
}
);
}
}
// ************************************************************************* //
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