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Forum: OpenFOAM Running, Solving & CFD

December 2, 2014, 03:47

Replies: 2

Radiation convergence problem

Views: 1,209

Posted By chriss85

It seems to be working now, I think there was an...

It seems to be working now, I think there was an error in my input data (material libraries), however, I still don't understand why the matrix solvers behave differently regarding convergence...

Forum: OpenFOAM Running, Solving & CFD

December 1, 2014, 03:25

Replies: 2

Radiation convergence problem

Views: 1,209

Posted By chriss85

I switched to the GAMG multigrid algorithm and it...

I switched to the GAMG multigrid algorithm and it no longer crashed in the first time step and looks reasonable.
However, now it crashes in the second time step :(

Can anyone explain why some...

Forum: OpenFOAM Running, Solving & CFD

December 1, 2014, 02:38

Replies: 2

Radiation convergence problem

Views: 1,209

Posted By chriss85

Radiation convergence problem

I'm currently running a simulation using the P1 radiation model and I notice extremely high residuals which don't appear to converge:

DICPCG: Solving for G, Initial residual = 1, Final residual =...

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