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Could not invert control surface Ap

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Old   November 16, 2022, 18:03
Default Could not invert control surface Ap
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Dear All,
I am working with Ansys CFX for more than 10 years. During this period, I had no major problem with it. But now, I have a project for the simulation of the flow field in an engine.
I must say I realy stuked! I am desperate on understanding and solving this problem! I can not find any solution to it. Is there anyone to give me a hint?

----------------------------------------------------------------

Parallel run: Received message from slave
-----------------------------------------
Slave partition : 22
Slave routine : ASS_GLOBCS_IAP
Master location : Message Handler
Message label : 002100088
Message follows below - :

+--------------------------------------------------------------------+
| ERROR #002100088 has occurred in subroutine ASS_GLOBCS_IAP. |
| Message: |
| Could not invert control surface Ap at the following location: |
| Domain Interface : R1 to R1 Internal |
| Location (X,Y,Z) : ( 0.22981E-01,-0.35690E-01, 0.83732E-01) |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine MESG_RETRIEVE. |
| Message: |
| Stopping the run due to error(s) reported above
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Old   November 16, 2022, 21:11
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From the message, it seems the equations for the domain interface at the tip gap of your rotor are decoupled.

How did you create the mesh? Using TurboGrid? If you did, check if you can recreate the mesh with a conformal tip gap. It is possible in recent releases of TurboGrid.
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Old   November 23, 2022, 12:50
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Dear Opaque
I generated the mesh with Ansys Turbogrid. Before posting my problem here, I tried to change the mesh in the tip clearance region, but I had no progress. Now I am generating the mesh with new parameters. I hope it works! Thanks
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