[Cristiano]

Hi,

I try to understand better the Mixture Fraction Model I should use to model a Jet in Hot Coflow by fireFoam.
Should I have two different inlets (fuel inlet and oxidizer inlet) to use this Model? If it would be true, I can't use it since I won't able to set the Ft boundary condition for my third inlet (hot combustion products).

Thank You very much,
Cristiano

[jason_wy]

You can just set ft equal to stoichiometric value to represent pure product in the coflow inlet.

Yi

Originally Posted by Cristiano

Hi,

I try to understand better the Mixture Fraction Model I should use to model a Jet in Hot Coflow by fireFoam.
Should I have two different inlets (fuel inlet and oxidizer inlet) to use this Model? If it would be true, I can't use it since I won't able to set the Ft boundary condition for my third inlet (hot combustion products).

Thank You very much,
Cristiano

[Cristiano]

Hi,

Combustion product composition is showed in the table below:

YO2 [%]

YN2 [%]

YH2O [%]

YCO2 [%]

3

85

6.5

5.5

Which value should I set for mixture fraction Ft boundary condition?

Thank You very much,
Cristiano