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Forum: CFX

November 24, 2014, 16:23

Replies: 8

Problems by starting Simulation with low y+

Views: 1,745

Posted By ghorrocks

This problem is related to this FAQ:...

This problem is related to this FAQ: 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

The...

Forum: CFX

November 24, 2014, 04:20

Replies: 8

Problems by starting Simulation with low y+

Views: 1,745

Posted By ghorrocks

Yes, that is correct.

Yes, that is correct.

Forum: CFX

November 23, 2014, 18:06

Replies: 8

Problems by starting Simulation with low y+

Views: 1,745

Posted By ghorrocks

To do a simple model for an initial condition: ...

To do a simple model for an initial condition:
* Coarser mesh
* Upwind differencing
* Default physics models (so the default wall HT condition)
* If transient use first order time differencing

Forum: CFX

November 23, 2014, 16:57

Replies: 8

Problems by starting Simulation with low y+

Views: 1,745

Posted By ghorrocks

Only include viscous work if it is significant....

Only include viscous work if it is significant. It is unlikely to be significant in high mach number flows. I am not familiar with the wall heat transfer model you refer to so I would definitely...

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