CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Convergence Problem with Species Coupled w/Scalar (http://www.cfd-online.com/Forums/fluent/30634-convergence-problem-species-coupled-w-scalar.html)

Chia Ni December 9, 2002 06:11

Convergence Problem with Species Coupled w/Scalar
 
I am facing a problem in obtaining the convergence for species calculation, which are coupled with partial differential equations as solved by "user defined scalar". The residuals of the product species reached a constant value at 7e-3 after 6000 iterations while other residuals, including the scalars, reduced consistently to 1e-8. Also, the concentration of the product species at the outlet decreased with the number of iteration.

I wonder if anyone has the experience in simulating such a coupled model. Any comments or suggestions are welcomed.

Thank you for your attention.


All times are GMT -4. The time now is 16:22.