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Laminar Burning Velocity Calculations with Fluent

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Old   January 24, 2014, 10:26
Default Laminar Burning Velocity Calculations with Fluent
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Naseh Hosseini
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I am trying to run a simple case of premixed laminar methane-air flame.
In order to investigate effects of acoustic waves on it, but not for now.

I heard that you can easily get wrong laminar flame speed in Fluent if your grid is not fine enough and if you use default values of single step chemistry.
So I was introduced to make a quasi 1D model (on element in height and thousands in length) ans apply the mixture as velocity inlet and check the flame speed.

I can run this simulation and the flame forms in a distance.
Now how can I actually calculate the laminar burning velocity?
I was told I can use this formula:

S_Laminar = (1/rho_unburnt)*Integral{(rho*dY/dt)dx

Would you please tell me how I can extract these parameters in Fluent?

Thank you.
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burning velocity, fluent, laminar, premixed

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