Having trouble setting up a 3D fan zone in the Cell Zone Conditions by pyfluent

[1Northward1]

Discussed in #1652

^{Originally posted by 1Northward1 May 30, 2023}
Dear pyfluent support team,

I am having trouble setting up a 3D fan zone in the Cell Zone Conditions using pyfluent. Specifically, I am unable to specify the fan inlet zone.

I have tried using the following commands to set up the inlet of the fan zone:

solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fanzone' : True}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_zone_list': 'fan_inlet'}

However, I receive the following error message:

Error: wta(1st) to symbol->string
Error Object: 0

I have also tried the following commands, which also give me an error:

solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'inlet_fan_zone': 'fan_inlet'}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_zone_list': ['fan_inlet']}

I would appreciate any guidance on how to properly specify the fan inlet zone in the Cell Zone Conditions through pyfluent.

I have included the full pyfluent code for your reference.

#--------------------------------------------------Read Case---------------------------------------------------#
pwd = os.getcwd()
meshFile= os.path.join(pwd,r"FM_output.msh")

solver = pyfluent.launch_fluent(version="3d",precision="double",
processor_count=8,show_gui=True,cleanup_on_exit=False, mode="solver")
solver.file.read(file_type="case", file_name=meshFile)

angvel = 7800
pre_jump = 3000
#--------------------------------------------------Materials---------------------------------------------------#
solver.setup.materials.fluid['air'] = {'density': {'option': 'ideal-gas'},
'viscosity': {'option': 'sutherland',
'sutherland': {'option': 'three-coefficient-method',
'reference_viscosity': 1.7894e-05,
'reference_temperature': 288.15,
'effective_temperature': 110.56}}}
#-------------------------------------------Cell Zone Conditions----------------------------------------------#
solver.tui.define.boundary_conditions.modify_zones.zone_name("fan-inlet-suc-outlet-fan-zone-main-zone", "fan_inlet")
solver.tui.define.boundary_conditions.modify_zones.zone_name("fan-outlet-jet-inlet-fan-zone-main-zone", "fan_outlet")
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fanzone' : True}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'material': 'air'}

solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_zone_list': ['fan_inlet']}

solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_hub_rad' : 0.0203}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_tip_rad' : 0.0323}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_thickness' : 0.124}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_inflection_point' : 0.83}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_x_origin' : 0.315495}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_y_origin' : 0.012141}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_z_origin' : 0.0}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'limit_flow_fan': False}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'tan_source_term': True}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'rad_source_term': True}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'axial_source_term': True}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_rot_dir' : 'positive'}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_opert_angvel': angvel}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_axial_source_method': 'constant pressure'}
solver.setup.cell_zone_conditions.fluid['fan-zone'] = {'fan_pre_jump': pre_jump}

Thank you for your assistance.

Sincerely,
Mars

[seanpearsonuk]

@1Northward1 If you have a set of working TUI commands you can journal them to Python in Fluent and then use the generated script in PyFluent.