[aero29]

Hi Everyone,

I am working on creating a SU2 turbomachinery workflow ( SU2 8.1.0) .
I have written a code to write the grid in *.su2 format directly.

( ATTACHED : GRID FILE and CONFIG FILE)

While running SU2_CFD, I got this error -
" .....

------------------- Geometry Preprocessing ( Zone 0 ) -------------------


Error in "bool CSU2ASCIIMeshReaderFVM::ReadMetadata(bool, CConfig*)":
-------------------------------------------------------------------------
Could not find the keyword "NDIME=".
Check the SU2 ASCII file format.
------------------------------ Error Exit -------------------------------
"
However, all keywords and sections are present in the grid file.

I have checked with the turbo tutorials and could not spot issue with my Grid File Format.

Any observation will be helpful .

thank you !

[bigfootedrockmidget]

You have a multizone mesh, so you need to set up a multiphysics/multizone problem.
For instance this tutorial:
https://su2code.github.io/tutorials/Static_CHT/


or in the Testcases repository, we have a subsection turbomachinery:
https://github.com/su2code/SU2/tree/...U_turbocharger

[aero29]

Thank you for pointing out the issue ! It is great help

I will modify my Main Config file for multi-zone, and 2 Sub-Config files for 1 rotor and 1 stator.

I have also found some explanation on Multi-zone + Multi-physics here as well - "https://su2code.github.io/docs_v7/Multizone/" .

Extension - Any suggestions on the best practice for grid handling in a multi-row turbo cases ? For a refined mesh multi-row case, single grid file is too large.

As in documentation, for "MULTIZONE_MESH= YES" , ( Each Sub-Config file should have mesh file name) MESH_FILENAME = ZONE1.su2

Do we have any example for case?

Thank you for the help !
Appreciate it