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Old   December 11, 2010, 11:13
Question --- How to calculate phiMean for each time step ---
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hi to all,

I want simulate a problem and i need to set outlets 20% and 80%. as i don't have outlets velocities i set pressure to reach desired flow rates from each outlet by try and error. i do this by k-e and reach to answer. but in Rans and LES i should use averaged flows.
i need phi mean parameter same as uMean and pMean which is defined in controlDict.
How can i tell OF to calculate phiMean for each time step for patches.

Thanks in advance,
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Old   December 13, 2010, 09:30
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Cedric Van Holsbeke
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Add this to your controlDict file:

Code:
functions 
(
       mflow1
       {
             type            faceSource;
             functionObjectLibs ("libfieldFunctionObjects.so");
             enabled         true;
             outputControl   timeStep;
             outputInterval  1;
             log             true;
             valueOutput     false;
             source          patch;
             sourceName      outlet1;
             operation       sum;
             fields
             (
                   phi
             );
       }

       mflow2
       {
             type            faceSource;
             functionObjectLibs ("libfieldFunctionObjects.so");
             enabled         true;
             outputControl   timeStep;
             outputInterval  1;
             log             true;
             valueOutput     false;
             source          patch;
             sourceName      outlet2;
             operation       sum;
             fields
             (
                   phi
             );
  }
);
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Old   December 22, 2010, 16:15
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Thanks for your answer.

I tried it. but i don't have phiMean in time steps folders. what should i do?
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Old   December 28, 2010, 04:45
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i need phiMean or phi which uses uMean.
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