Extract the vector field of the fluid domain

[zouki-dev]

Hi,

I'm having trouble doing something pretty basic... I want to extract the vector field from a .dat.gz of the volume/fluid domain "surface".
To be clear: I want the DataFrame with columns=[nodes_number, x, y, z, velocity_x, velocity_y, velocity_z]

Here is a test code:

import ansys.fluent.core as pyfluent
from ansys.fluent.core import examples

file = examples.download_file(
    filename="manifold_solution.cas.h5", directory="pyfluent/exhaust_manifold"
)
file_dat = examples.download_file(
    filename="manifold_solution.dat.h5", directory="pyfluent/exhaust_manifold"
)

solver = pyfluent.launch_fluent(precision='double', processor_count=1, mode="solver")
solver.file.read(file_type="case-data", file_name=file)

field_data = solver.field_data
vector_field = field_data.get_vector_field_data(field_name="velocity", surface_name="fluid1")
print(vector_field)

Ans here is the traceback:

C:\Users\ARD\anaconda3\Lib\site-packages\paramiko\transport.py:219: CryptographyDeprecationWarning: Blowfish has been deprecated
  "class": algorithms.Blowfish,
Checking if specified file already exists...
File already exists. File path:
C:\Users\ARD\AppData\Local\Ansys\ansys_fluent_core\examples\manifold_solution.cas.h5
Checking if specified file already exists...
File already exists. File path:
C:\Users\ARD\AppData\Local\Ansys\ansys_fluent_core\examples\manifold_solution.dat.h5
Fast-loading "C:\PROGRA~1\ANSYSI~1\v231\fluent\fluent23.1.0\\addons\afd\lib\hdfio.bin"
Done.
Note: Rank = 0: Process affinity not being set (6).

Reading from SYC-29:"C:\Users\ARD\AppData\Local\Ansys\ansys_fluent_core\examples\manifold_solution.cas.h5" in NODE0 mode ...
  Reading mesh ...
      288590 cells,     2 cell zones ...
         201658 polyhedra cells,  zone id: 815
          86932 polyhedra cells,  zone id: 818
     1795387 faces,    13 face zones ...
         454038 polygonal interior faces,  zone id: 817
        1258889 polygonal interior faces,  zone id: 814
            275 polygonal pressure-outlet faces,  zone id: 559
            261 polygonal velocity-inlet faces,  zone id: 463
            265 polygonal velocity-inlet faces,  zone id: 367
            262 polygonal velocity-inlet faces,  zone id: 272
          51846 polygonal wall faces,  zone id: 226
          13399 polygonal wall faces,  zone id: 830
          13399 polygonal wall faces,  zone id: 2
            724 polygonal wall faces,  zone id: 181
            676 polygonal wall faces,  zone id: 180
            678 polygonal wall faces,  zone id: 179
            675 polygonal wall faces,  zone id: 178
     1408040 nodes,     1 node zone  ...
Warning: reading 4 partition grid onto 1 compute node machine.
         Combining every 4 partitions.
  Done.


Building...
     mesh
     materials,
     interface,
     domains,
	mixture
     zones,
	solid_up:1:830-shadow
	interior--fluid1
	interior--solid_up
	outlet
	inlet2
	inlet1
	inlet
	solid_up:1
	solid_up:1:830
	out1
	in3
	in2
	in1
	fluid1
	solid_up
     parallel,
Done.

Reading from SYC-29:"C:\Users\ARD\AppData\Local\Ansys\ansys_fluent_core\examples\manifold_solution.dat.h5" in NODE0 mode ...


  Reading results.
Parallel variables...
Done.
Traceback (most recent call last):
  File "D:\python\stansys\example_stack_overflow.py", line 15, in <module>
    vector_field = field_data.get_vector_field_data(field_name="velocity", surface_name="fluid1")
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ARD\anaconda3\Lib\site-packages\ansys\fluent\core\services\field_data.py", line 359, in __call__
    return self._field_data_accessor(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\ARD\anaconda3\Lib\site-packages\ansys\fluent\core\services\field_data.py", line 1336, in get_vector_field_data
    surface_ids = _get_surface_ids(
                  ^^^^^^^^^^^^^^^^^
  File "C:\Users\ARD\anaconda3\Lib\site-packages\ansys\fluent\core\services\field_data.py", line 730, in _get_surface_ids
    allowed_surface_names.valid_name(surface_name)
  File "C:\Users\ARD\anaconda3\Lib\site-packages\ansys\fluent\core\services\field_data.py", line 293, in valid_name
    raise SurfaceNameError(
ansys.fluent.core.services.field_data.SurfaceNameError: fluid1 is not an allowed surface name.
The most similar names are: solid_up:1.

[mkundu1]

I don't think we support extracting vector data from volumetric regions. @ajain-work

[dnwillia-work]

Can one use the SVar service for this now?