Sacaq
Mechanical
- Nov 4, 2014
- 42
Hi~
I got another problem with finite rate/eddy dissipation model using surface reaction.
The surface reaction was activated by
1.Model→Species transport→check "Wall surface"
2.Assign material in mixture to "Site species"
3.Material→Mixture→Create "Wall Surface Reaction" and "Mechanism"
3.Boundary conditions→ check "Reaction"→ assign "Site species"
However, I saw that the wall surface reaction only used finite-rate model setup.
The setup of Eddy dissipation mode was disabled and turn grey on the setup panel.
Running the simulation and check contour of "Rate of Reaction", and then there was no rate of reaction.
The value of rate of reaction is 0.
However, the Kinetic Rate of Reaction had some values.
I checked the description in "34.4. Alphabetical Listing of Field Variables and Their Definitions."
It said:
Rate of Reaction-n
(in the Reactions... category) is the effective rate of progress of th reaction. For the finite-rate model, the value is the same as the Kinetic Rate of Reaction-n. For the eddy-dissipation model, the value is equivalent to the Turbulent Rate of Reaction-n. For the finite-rate/eddy-dissipation model, it is the lesser of the two.
Does it mean that surface reaction could not be simulated using Finite-rate/Eddy dissipation model?
Is there another way?
Thank you!
I got another problem with finite rate/eddy dissipation model using surface reaction.
The surface reaction was activated by
1.Model→Species transport→check "Wall surface"
2.Assign material in mixture to "Site species"
3.Material→Mixture→Create "Wall Surface Reaction" and "Mechanism"
3.Boundary conditions→ check "Reaction"→ assign "Site species"
However, I saw that the wall surface reaction only used finite-rate model setup.
The setup of Eddy dissipation mode was disabled and turn grey on the setup panel.
Running the simulation and check contour of "Rate of Reaction", and then there was no rate of reaction.
The value of rate of reaction is 0.
However, the Kinetic Rate of Reaction had some values.
I checked the description in "34.4. Alphabetical Listing of Field Variables and Their Definitions."
It said:
Rate of Reaction-n
(in the Reactions... category) is the effective rate of progress of th reaction. For the finite-rate model, the value is the same as the Kinetic Rate of Reaction-n. For the eddy-dissipation model, the value is equivalent to the Turbulent Rate of Reaction-n. For the finite-rate/eddy-dissipation model, it is the lesser of the two.
Does it mean that surface reaction could not be simulated using Finite-rate/Eddy dissipation model?
Is there another way?
Thank you!
