Air intake connection solver probleme CFX

Kamal_1 · June 14, 2011, 01:59

Mesh is available in .cgns format. In CFX pre it is imported and set the boundary conditions. But after few iteration solution is stopped giving info that overflow occur.
Could you please give some idea how to overcome from this problem.
Thanks

ghorrocks · June 14, 2011, 09:08

I should write an FAQ on this, been asked so many times....

The overflow error means your simulation has diverged. Need to improve the numerical stability. Try smaller timesteps, lower order discretisation, double precision numerics, improve mesh quality, simpler physics, better initial conditions.

June 14, 2011, 01:59	Air intake connection solver probleme CFX	#1
Kamal_1 New Member Kamal Join Date: Jun 2011 Posts: 1 Rep Power: 0	Mesh is available in .cgns format. In CFX pre it is imported and set the boundary conditions. But after few iteration solution is stopped giving info that overflow occur. Could you please give some idea how to overcome from this problem. Thanks

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June 14, 2011, 09:08		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	I should write an FAQ on this, been asked so many times.... The overflow error means your simulation has diverged. Need to improve the numerical stability. Try smaller timesteps, lower order discretisation, double precision numerics, improve mesh quality, simpler physics, better initial conditions.