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Forum: CFX

November 14, 2013, 16:43

Replies: 6

Diagnosing linear solving failure

Views: 1,974

Posted By ghorrocks

Yes, reduce the time scale. Also, using a...

Yes, reduce the time scale. Also, using a simulation at a similar setting which did converge as an initial condition can help. Another idea is to use local time scale factor for the initial...

Forum: CFX

November 14, 2013, 04:17

Replies: 6

Diagnosing linear solving failure

Views: 1,974

Posted By ghorrocks

If it fails on the first iteration then your...

If it fails on the first iteration then your simulation is unstable right from the start. So smaller time steps and a better initial condition are the factors I would be looking into to get it...

Forum: CFX

November 13, 2013, 16:22

Replies: 6

Diagnosing linear solving failure

Views: 1,974

Posted By ghorrocks

There is an FAQ on this general question: ...

There is an FAQ on this general question:
http://www.cfd-online.com/Wiki/Ansys_FAQ#I_get_the_error_.22Floating_point_exception:_Overflow.22._What_does_this_mean_and_what_do_I_do_about_it.3F

It is...

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