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Jet in Hot Coflow by FireFoam

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Old   June 17, 2010, 09:28
Default Jet in Hot Coflow by FireFoam
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Cristiano
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Hello everyone,

I am modelling a Jet in Hot Coflow by FireFoam . I would like to understand if Mixture Fraction model could be used for my case since I have three inlet patches (inletFuel, inletAir and inletCoflow). inletCoflow is the patch for a combustion products inlet which are coming from a second burner (N2, O2, CO2, H20).
My doubt was born while I was setting the boundary condition for the mixture fraction "Ft" file in the 0 directory (Coflow is either no fuel inlet or air inlet ).

Thank You for your help!
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Old   June 18, 2010, 09:16
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Yi Wang
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If the inletCoflow is pure product, fireFoam can handle it. Just make ft equals the stoichiometric value at the inletCoflow.

Yi


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Originally Posted by Cristiano View Post
Hello everyone,

I am modelling a Jet in Hot Coflow by FireFoam . I would like to understand if Mixture Fraction model could be used for my case since I have three inlet patches (inletFuel, inletAir and inletCoflow). inletCoflow is the patch for a combustion products inlet which are coming from a second burner (N2, O2, CO2, H20).
My doubt was born while I was setting the boundary condition for the mixture fraction "Ft" file in the 0 directory (Coflow is either no fuel inlet or air inlet ).

Thank You for your help!
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Old   June 18, 2010, 09:56
Default Ft
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Cristiano
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I appreciate your help, basically, I don't understand why I should set Ft equals to the stoichiometric value of the Coflow.
Could you explain to me something about that?
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