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Transient Blade Row model Fourier transformation error

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Old   April 12, 2016, 01:37
Default Transient Blade Row model Fourier transformation error
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Junsoo Kim
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Hello everyone.
I am trying to analyze gas turbine 1st stage with transient blade row model. I am using fourier transformation and Rotor-stator option(beta feature).

In the display monitor, the message at below has displayed.




ERROR #999100267 has occurred in subroutine gKCsFCCsPS.
Message:

Unable to compute interface connectivity between the following domain interfaces:

Phase Corrected domain interface : R1 to R1 Periodic 1
Sampling domain interface : R1 Internal Interface 2

for this serial/partitioning run. Likely causes are:

1) The mesh has been transformed using single precision arithmetic at some point.
2) The single precision solver/partitioner is being used instead of the double precision solver/partitioner as recommended for the Fourier Transformation model.

If 2) is not the case please increase the expert parameter "ps mapping check tolerance" to a Value larger than the current value: 1.000E-04.



I confirmed that mesh has been transformed using double precision, and also double precision solver is being used.
So I looked for "ps mapping check tolerance" but there wasn't any tolerance like that in expert parameters.

I am using ANSYS 15.0 and If someone have any idea of this, please give me any advice. Thank you.
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Old   April 12, 2016, 11:29
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I am not sure, but I think the Phase Corrected Interface and the Sampling Interface are not physically matching.

The name for the Sampling Interface being suggest it is referring to tip gap interface (usually named <Component> Internal Interface <N>) instead of the sampling interface between the two passages.

Hope the above helps,
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Old   May 30, 2016, 08:53
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Jessica Wei
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Hello!

Do you solve the problem yet? I'm using CFX 16.0 TBR-FT now and facing the same problem. Could you help me on this please? Thank you very much.


Quote:
Originally Posted by kimjs428 View Post
Hello everyone.
I am trying to analyze gas turbine 1st stage with transient blade row model. I am using fourier transformation and Rotor-stator option(beta feature).

In the display monitor, the message at below has displayed.




ERROR #999100267 has occurred in subroutine gKCsFCCsPS.
Message:

Unable to compute interface connectivity between the following domain interfaces:

Phase Corrected domain interface : R1 to R1 Periodic 1
Sampling domain interface : R1 Internal Interface 2

for this serial/partitioning run. Likely causes are:

1) The mesh has been transformed using single precision arithmetic at some point.
2) The single precision solver/partitioner is being used instead of the double precision solver/partitioner as recommended for the Fourier Transformation model.

If 2) is not the case please increase the expert parameter "ps mapping check tolerance" to a Value larger than the current value: 1.000E-04.



I confirmed that mesh has been transformed using double precision, and also double precision solver is being used.
So I looked for "ps mapping check tolerance" but there wasn't any tolerance like that in expert parameters.

I am using ANSYS 15.0 and If someone have any idea of this, please give me any advice. Thank you.
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Old   October 19, 2016, 13:03
Default Same problem in Fourier Transformation method
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vahid
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I am simulating a Francis turbine using FT Method and I have the same problem , have you solved the problem? If yes, How do you solved the problem?
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Old   March 2, 2017, 17:58
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Quote:
Originally Posted by vetmechanic View Post
I am simulating a Francis turbine using FT Method and I have the same problem , have you solved the problem? If yes, How do you solved the problem?
Anyone solved it?
Thanks
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Old   November 30, 2017, 10:36
Default Error
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Davide
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Has someone solved this error? Also me have the same problem, I followed the youtube guide modeling impeller vaneless volute but the partitioner interruptes with the same error
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Old   December 4, 2017, 17:19
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Two things to keep in mind:

When doing replicating the mesh for the passage, you must use the Turbo Rotation option. Do not use the Rotation option unless you are going to type 16 decimal digits for the rotation angle.

Once the definition file is created, you must always run in double precision for Fourier Transformation cases.

Both items are mentioned in the documentation for transient blade row guidelines.
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