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Specify Temperature of Inflowing Mass Source

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Old   August 31, 2018, 17:33
Default Specify Temperature of Inflowing Mass Source
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Jeff Anon
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Hi All,

Relatively new to FOAM - I have a scenario using reactingFoam in which I have set up a mass source at an injection location. I have prescribed the mass flow rate and momentum at this location, but do not know how to prescribe the temperature of the inflowing mass.

I ran a test ignoring temperature, and as expected, the temperature within my domain plummeted due to the inflowing mass lacking any energy.

Is there a simple way to prescribe the temperature of the inflowing source? Or, do I need to prescribe this is another way, e.g., as a separate heat source at the same location?

My code in fvOptions..
Code:
massSource1
    {
        type            scalarSemiImplicitSource;

        scalarSemiImplicitSourceCoeffs
        {
            $injector1;

            volumeMode      absolute;
            injectionRateSuSp
            {
                rho     (0.31397 0); // kg/s
                Chemical1   (0.31397 0); // kg/s
            }
        }
    }

    momentumSource1
    {
        type            vectorSemiImplicitSource;

        vectorSemiImplicitSourceCoeffs
        {
            $injector1;

            volumeMode      absolute;
            injectionRateSuSp
            {
                U           ((0 -44.64 0) 0); // kg*m/s^2
            }
        }
    }
Thanks for your consideration!
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Old   September 1, 2018, 12:04
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Have you tried using an energy source at the same location? It would be a simple addition of h with some value to your scalarSemiImplicitSource. For reference, check out this tutorial -- It looks like it's doing the same thing :

https://github.com/OpenFOAM/OpenFOAM...tant/fvOptions

Caelan
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