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-   -   Problematic interface in a rotatory-stationary domains (http://www.cfd-online.com/Forums/cfx/92709-problematic-interface-rotatory-stationary-domains.html)

jordibartrons September 22, 2011 12:33

Problematic interface in a rotatory-stationary domains
 
Hi,
I have a stationary domain which is a pipe and a nozzle inside and a rotatory domain which is a propeller inside the nozzle. I setup all the components in a turbomode on CFX Pre, but I'm confusing in order to check the regions. And when solution starts, is post:

| ERROR #555000013 has occurred in subroutine CHECK_FACE_ETA. |
| Message: |
| |
| Coordinate transformation of Side 1 of interface |
| Internal Interface 1 |
| failed because some faces have an eta extent smaller than the |
| allowed value. This can happen if the interface contains some |
| faces that are parallel to the rotation axis and others that |
| are perpendicular. The transformation algorithm does not permit |
| both of these face types to coexist in the same interface. The |
| minimum value of the face eta range is 0.000E+00. |
| Please check and modify the topology or set the expert parameter |
| 'ggi minimum face delta eta' to a value less than the reported |
| minimum face eta range. |
+-----------------------------------------


Does anyone jnow about this?

Thank you very much

fish June 4, 2012 21:36

Quote:

Originally Posted by jordibartrons (Post 325260)
Hi,
I have a stationary domain which is a pipe and a nozzle inside and a rotatory domain which is a propeller inside the nozzle. I setup all the components in a turbomode on CFX Pre, but I'm confusing in order to check the regions. And when solution starts, is post:

| ERROR #555000013 has occurred in subroutine CHECK_FACE_ETA. |
| Message: |
| |
| Coordinate transformation of Side 1 of interface |
| Internal Interface 1 |
| failed because some faces have an eta extent smaller than the |
| allowed value. This can happen if the interface contains some |
| faces that are parallel to the rotation axis and others that |
| are perpendicular. The transformation algorithm does not permit |
| both of these face types to coexist in the same interface. The |
| minimum value of the face eta range is 0.000E+00. |
| Please check and modify the topology or set the expert parameter |
| 'ggi minimum face delta eta' to a value less than the reported |
| minimum face eta range. |
+-----------------------------------------


Does anyone jnow about this?

Thank you very much

I have met zhe sam question.but I can't find the eta torlerance setup in CFX. Have you solved the problem? :)


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