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Old   May 16, 2011, 07:26
Default Fluent Parallel Mode
Nuno Gomes
Join Date: May 2009
Location: Portugal
Posts: 39
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Dinocrack is on a distinguished road

I am simulting a unsteady problem from a reactor, with two velocity inlets and, a two zones, where there is a interior face beetween them. And a pressure outlet.

I start with a steady solution, and from that i move to unsteady. For pressure discretization i use Presto and Momentum Quick. I run on parallel mode.

Everything looks fine, but near the 10000timesteps ocour an error from Divergence detected in AMG solver: pressure correction -> turning off correction scaling!
Divergence detected in AMG solver: pressure correction -> Increasing relaxation sweeps!

I close the program and after, trying to open give this error

Cell Centroid is xc 1.993950 yc 1.463519 zc 1.365260
WARNING: no face with given nodes. Thread 7, cell 352956
Clearing partially read grid.

Error: Build Grid: Aborted due to critical error.

Error: Build Grid: Aborted due to critical error.
Error Object: #f"

The mesh was fine...but i still dont understand where is the problem and now i can't run in parallel mode. I star the same simulation but with lower discretizations. I will try some stabilization, and then change to presto and quick again.

Anyone can help me? I dont know why this is not workting for parallel mode...
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