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How to calculate the production rate of some surface reaction in FLUENT?

How to calculate the production rate of some surface reaction in FLUENT?

How to calculate the production rate of some surface reaction in FLUENT?

(OP)
Hi~

I built up s model using Finite rate/Eddy dissipation with surface reaction.
The surface reaction is calculated using Arrhenius rate. The option for Mixing rate is blocked an turned grey in setup window.

I found that "Rate of Reaction" is zero, "Kinetic Rate of Reaction" is a non-zero value, and "Turbulent Rate of Reaction" is zero, using "Report→Contours→Reactions...".
Another strange thing is that the contour of mass fraction of this reaction product is not zero.
The value is 1 on the wall.
However, I don't know how to calculate the produciton rate.
Could anyone kindly help?
Thank you!

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