CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   Error reg divergence in AMG solver (

aarti July 30, 2008 12:18

Error reg divergence in AMG solver
Hi ppl!

I have been repeatedly encountering the following error-

Error: divergence detected in AMG solver: pressure correction Error Object: ()

I have been working with pretty much the same mesh for a while now and the error popped up when i tried using the 2nd order discretization. I also tried making the mesh a little better by modifying the BL but now i get the same error with both 1st and 2nd orders. Previous replies 2 this prob from this forum suggest lowering the under-relaxation factors but this doesn't seem 2 help!! any ideas??! also, i'd really appreicate it if someone could tell me why exactly this error is generated or where i could fine more info about it...thanks!!

JB July 31, 2008 07:59

Re: Error reg divergence in AMG solver
Hey, I can't help you with the details of how and why, but except what has already been suggested (UR coef), I remember having divergence problems when using extreme porous media coefficient sets. Are you using a porus medium?

aarti August 1, 2008 00:51

Re: Error reg divergence in AMG solver
hey , thanks for the reply..i'm not using a porous medium so i dont think that's the prob...i'm still fighting with it and will post an updates! thanks!!

All times are GMT -4. The time now is 13:54.