Fluent 12.0 is worst then Fluent 6.2
Hi all,
Just a information sharing. i currently upgraded to Fluent 12.0 and i try to rerun my simulation which i successfully done in Fluent 6.2. The unsteady simulation just stop after around 8 time steps with the error message , AMG divergence - X-momentum. I actually using the exactly same CASE file for both Fluent 12.0 and Fluent 6.2, but the Fluent 12.0 had fail to run. I suspect Ansys had added something into Fluent 12.0 cause it not stable. I also have some colleague using ICEPAK 12.0 and they also found error which never happen on ICEPAK 4.0. Again, its a totally same simulation. I will suggest to stop using Fluent 12.0 for the moment. Anyhow, just a suggestion. :) |
I had tired another 5 cases which i successfully run in Fluent 6.3. All case fail running in Fluent 12.0.
I grab the latest patch from Fluent 12.0.12 , try again, still fail. I hope the latest Fluent 12.1 can solve the problem. |
Hello herntan,
I never encountered such an error in v12. May be this problem based another things. License,operating sytem, system configurations etc... Because i runned alot of models in v12 from v11 case files. Yesterday 12.1 version released. you can try this. May be useful Good Luck |
Arda,
I using the same lisence as the Fluent 6.3 using. I have no idea why this happen in Fluent 12.0. I had tried to download 12.1 from Fluent user website, but they haven't release the software yet. U get the 12.1 already? |
Yeap,
tat's true I used 12v for my problem, it was not converging. But for same case file on 6.3 it goes f9.:confused: Goldstean Process Design Engineer |
GREAT NEWS !!
I had downloaded the latest Fluent 12.1 from fluentuser.com and rerun my simulation again. Now everything works all right. The simulation i used to run fail in Fluent 12.0 now able to run in Fluent 12.1. You guys can start try using Fluent 12.1. I think Ansys had fixed the bug in Fluent 12.0. |
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