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Invert control surface Ap??

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Old   March 16, 2011, 12:53
Default Invert control surface Ap??
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Sergio Croquer
Join Date: Jan 2011
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Im trying to simulate a Banki (cross-flow) hydraulic turbine, in stationary regime. Its a multiphase simulation (water and air as IG).

After a few iterations, the solver apparently starts converging with certain stability. However, in an abrupt manner, the RMS values go all the way up, and the simulation stops with the following error on the .out file:

| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Could not invert control surface Ap |
| |
| |
| |
| |
| |

| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine ASS_GLOBCS_IAP |

Ive read that this can be solved by diminishing the physical timescale, but this didnt work for me. Ive also tried varying the meshes (structured and unstructured), meshes sizes, different timescales, with an stationary runner, monophase (just water)...

Ive tried everything I could think of and I dont find any solution to this. If someone could help me, Id apreciate it very much.

Thanks in advance.

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