finding Nusselt number
Title
Question
Dear Sir,
i found Nusselt number code in cfd online .
http://www.cfd-online.com/Forums/openfoam-post-processing/82263-nusselt-number-over-theta.html
what changes should be done in ControlDict file for post processing results? I am using buoyantBoussinesqSimpleFoam
i found Nusselt number code in cfd online .
http://www.cfd-online.com/Forums/openfoam-post-processing/82263-nusselt-number-over-theta.html
what changes should be done in ControlDict file for post processing results? I am using buoyantBoussinesqSimpleFoam
OpenFOAM Flow-over-a-flat-plate 08-09 min 10-20 sec
Answers:
Hi,
I think it's easier to use ParaView to calculate Nusselt Number over a boundary. But if it does not work out you can use a utility NusseltCalc in OpenFOAM to calculate <span style="line-height: 21.4286px;">Nusselt Number for buoyancy driven flows. You may follow the pdf report given in the link below to make changes in your case file, (checkout section 4):</span>
<a href="http://https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjwg5Gwj7rMAhUDcI4KHRdcA1kQFggpMAE&url=http%3A%2F%2Fwww.tfd.chalmers.se%2F~hani%2Fkurser%2FOS_CFD_2010%2FjohanMagnusson%2FjohanMagnussonReport.pdf&usg=AFQjCNH_4Qs3UM_f3OI8tF7RiBB80MDjwg&sig2=2GNgzrE2MS2QXUP2I23V7w&bvm=bv.121070826,d.c2E" target="" title="Creat NusseltCalc">Creat NusseltCalc</a>
Do let me know if you have any further problem.
my solver is buoyantBoussinesqSimpleFoam. to see the post processing results (Nusselt Number), i think some changes to make in ControlDict/Transport file? if you have idea please tell me sir?
my ControlDict file
application buoyantBoussinesqSimpleFoam;
startFrom latestTime;
startTime 0;
stopAt endTime;
endTime 10000;
deltaT 1;
writeControl runTime;
writeInterval 50;
purgeWrite 0;
writeFormat ascii;
writePrecision 6;
writeCompression off;
timeFormat general;
timePrecision 6;
runTimeModifiable true;
functions
(
probes
{
type probes;
name probes;
functionObjectLibs ("libsampling.so");
/*probeLocations
(
(0.025627 0 -0.00023237)
(0.0518278 0 -0.000461021)
);
fields
(
NusseltNumber
);*/
mode magnitude;
outputControl outputTime;
outputInterval 1;
}
);
i don't know whether it is right or wrong ?
but i am not getting the output ? would you please help me
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