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reactingFoam combustion not happening?

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Old   April 30, 2024, 00:31
Default reactingFoam combustion not happening?
  #1
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Hi Everyone!

I'm working on a combustion simulation using reactingFoam and the simulation is running ok, I'm seeing the fuel being injected as expected, inlet temperatures and velocities as well... But for some reason, it seems there is no reacting taking place. I would deeply appreciate your advice!

Is there anything I'm doing wrong? I'm not sure if I need to update anything on yDefault or anywhere else.

For H2 I have a fixedValue of 1 for injection, and O2 I have a fixed value of 0.28 for inlet as well...

yDefaul
Code:
internalField   uniform 0;

boundaryField
{
    fuelinlet
    {
        type            fixedValue;
        value           uniform 0;
    }

    airinlet
    {
        type            fixedValue;
        value           uniform 0;
    }

    outlet
    {
        type            inletOutlet;
        inletValue      uniform 0;
        value           uniform 0;
    }

    top
    {
        type            zeroGradient;
    }

    bottom
    {
        type            zeroGradient;
    }

    frontAndBackPlanes
    {
        type            empty;
    }
}
ReactionsGRI
Code:
reactions
{
    un-named-reaction-219
    {
        type            reversibleArrheniusReaction;
        reaction        "O2 + 2H2 = 2H2O";
        A               38.7;
        beta            2.7;
        Ta              3149.977155;
    }
}
Attached Images
File Type: png H2 Combustion.png (44.5 KB, 6 views)
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Old   April 30, 2024, 10:41
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Update:


I'm adding a fvOption to ignite the flame:


energySource1
{
type scalarSemiImplicitSource;
active true;
timeStart 0;
duration 0.0001;

scalarSemiImplicitSourceCoeffs
{
selectionMode fuelinletCells;
volumeMode specific;
injectionRateSuSp
{
h (5e9 0);
}
}
}


But now I can't pass the error: "Entry 'cellSet' not found in dictionary" how can I create the defined cellSet for my case? Any recommendation?
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Old   April 30, 2024, 12:40
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Quick Update:


This issue has been solved. Thanks everyone!
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