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Forum: CFX

November 2, 2010, 07:45

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

Hi ghorrocks, I have been going crazy with...

Hi ghorrocks,

I have been going crazy with this model. I think one of the problems was drawing the geometry in mm in the design modeller (i use workbench) it seems to be sensitive to a change in...

Forum: CFX

November 1, 2010, 08:42

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

Hi, I set up a new model without the...

Hi,

I set up a new model without the free-slip wall and it works fine. I was using the free-slip wall to reduce any negative effects at the leading edge of the plate (inlet condition).

I'm...

Forum: CFX

October 31, 2010, 07:03

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

hi ghorrocks, Thanks again for the hasty...

hi ghorrocks,

Thanks again for the hasty response and your help, i just ran the sst model using the results from the k-eps model and a local time-scale factor of 0.00001.
It is running :D. do...

Forum: CFX

October 30, 2010, 17:47

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

Hi Thanks again for the quick response, i...

Hi

Thanks again for the quick response, i tried reducing the timestep and ran a K-eps model for the initial guess but it still keeps giving the same error.

i set up two models, both to...

Forum: CFX

October 29, 2010, 09:34

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

please see message below, ...

please see message below,

+--------------------------------------------------------------------+
| Convergence History |
...

Forum: CFX

October 29, 2010, 05:58

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

Turbulent SST model

Hi ghorrocks,

The model is steady state, i'm unsure of what aspect of the model is giving issues. The mesh i am using is an extruded 2D mesh with an expansion of 5% from the plate.

Thanks for...

Forum: CFX

October 28, 2010, 17:56

Replies: 13

Turbulent SST model

Views: 5,261

Posted By fergal

Turbulent SST model

Hi,

I'm quite new to CFX, i am currently modelling laminar and turbulent incompressible flow over a smooth flat plate. I have completed the laminar model, however when i increase the velocity...

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