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-   -   Jet in Hot Coflow by FireFoam (http://www.cfd-online.com/Forums/openfoam/77240-jet-hot-coflow-firefoam.html)

Cristiano June 17, 2010 09:28

Jet in Hot Coflow by FireFoam
 
Hello everyone,

I am modelling a Jet in Hot Coflow by FireFoam :). I would like to understand if Mixture Fraction model :confused: 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 :eek:).

Thank You for your help!

jason_wy June 18, 2010 09:16

If the inletCoflow is pure product, fireFoam can handle it. Just make ft equals the stoichiometric value at the inletCoflow.

Yi


Quote:

Originally Posted by Cristiano (Post 263418)
Hello everyone,

I am modelling a Jet in Hot Coflow by FireFoam :). I would like to understand if Mixture Fraction model :confused: 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 :eek:).

Thank You for your help!


Cristiano June 18, 2010 09:56

Ft
 
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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