.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples/00-fluent/exhaust_system_settings_api.py"
.. LINE NUMBERS ARE GIVEN BELOW.
.. only:: html
.. note::
:class: sphx-glr-download-link-note
:ref:`Go to the end <sphx_glr_download_examples_00-fluent_exhaust_system_settings_api.py>`
to download the full example code.
.. rst-class:: sphx-glr-example-title
.. _sphx_glr_examples_00-fluent_exhaust_system_settings_api.py:
.. _ref_exhaust_system_settings_api:
Fault-tolerant meshing workflow using settings objects
------------------------------------------------------
This example sets up and solves a three-dimensional turbulent fluid flow
in a manifold exhaust system, which is common in the automotive industry,
using the PyFluent Settings API. Predicting the flow field in the area of the
mixing region is important to designing the junction properly.
This example uses the guided workflow for fault-tolerant meshing because it
is appropriate for geometries that can have imperfections, such as gaps and
leakages.
**Workflow tasks**
The fault-tolerant meshing workflow guides you through these tasks:
- Import a CAD geometry and manage individual parts
- Generate a surface mesh
- Cap inlets and outlets
- Extract a fluid region
- Define leakages
- Extract edge features
- Set up size controls
- Generate a volume mesh
**Problem description**
In the manifold exhaust system, air flows through the three inlets
with a uniform velocity of 1 m/s. The air then exits through the outlet.
A small pipe is placed in the main portion of the manifold where edge
extraction is considered. The example also includes a known small leakage
to demonstrate the automatic leakage detection aspects of the meshing workflow.
.. GENERATED FROM PYTHON SOURCE LINES 37-46
Example Setup
-------------
Before you can use the fault-tolerant meshing workflow, you must set up the
example and initialize this workflow.
Perform required imports
~~~~~~~~~~~~~~~~~~~~~~~~
Perform required imports, which includes downloading and importing
the geometry file.
.. GENERATED FROM PYTHON SOURCE LINES 46-54
.. code-block:: Python
import ansys.fluent.core as pyfluent
from ansys.fluent.core import examples
import_file_name = examples.download_file(
"exhaust_system.fmd", "pyfluent/exhaust_system"
)
.. GENERATED FROM PYTHON SOURCE LINES 56-60
Launch Fluent
~~~~~~~~~~~~~
Launch Fluent as a service in meshing mode with double precision running on
two processors and print Fluent version.
.. GENERATED FROM PYTHON SOURCE LINES 60-68
.. code-block:: Python
meshing = pyfluent.launch_fluent(
precision="double",
processor_count=2,
mode="meshing",
)
print(meshing.get_fluent_version())
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Fluent version 2025 R1
.. GENERATED FROM PYTHON SOURCE LINES 69-72
Initialize workflow
~~~~~~~~~~~~~~~~~~~
Initialize the fault-tolerant meshing workflow.
.. GENERATED FROM PYTHON SOURCE LINES 72-75
.. code-block:: Python
meshing.workflow.InitializeWorkflow(WorkflowType="Fault-tolerant Meshing")
.. GENERATED FROM PYTHON SOURCE LINES 76-85
Fault-folerant meshing workflow
-------------------------------
The fault-tolerant meshing workflow guides you through the many tasks that
follow.
Import CAD and manage parts
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Import the CAD geometry file (``exhaust_system.fmd``) and selectively manage some
parts.
.. GENERATED FROM PYTHON SOURCE LINES 85-120
.. code-block:: Python
meshing.upload(import_file_name)
meshing.PartManagement.InputFileChanged(
FilePath=import_file_name, IgnoreSolidNames=False, PartPerBody=False
)
meshing.PMFileManagement.FileManager.LoadFiles()
meshing.PartManagement.Node["Meshing Model"].Copy(
Paths=[
"/dirty_manifold-for-wrapper," + "1/dirty_manifold-for-wrapper,1/main,1",
"/dirty_manifold-for-wrapper," + "1/dirty_manifold-for-wrapper,1/flow-pipe,1",
"/dirty_manifold-for-wrapper," + "1/dirty_manifold-for-wrapper,1/outpipe3,1",
"/dirty_manifold-for-wrapper," + "1/dirty_manifold-for-wrapper,1/object2,1",
"/dirty_manifold-for-wrapper," + "1/dirty_manifold-for-wrapper,1/object1,1",
]
)
meshing.PartManagement.ObjectSetting["DefaultObjectSetting"].OneZonePer.set_state(
"part"
)
cad_import = meshing.workflow.TaskObject["Import CAD and Part Management"]
cad_import.Arguments.set_state(
{
"Context": 0,
"CreateObjectPer": "Custom",
"FMDFileName": import_file_name,
"FileLoaded": "yes",
"ObjectSetting": "DefaultObjectSetting",
"Options": {
"Line": False,
"Solid": False,
"Surface": False,
},
}
)
cad_import.Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session.py:383: PyFluentUserWarning: You have directly called the upload() method of the session. Please be advised that for the current version of Fluent, many API methods automatically handle file uploads and downloads internally. You may not need to explicitly call upload() in most cases. However, there are exceptions, particularly in PMFileManagement, where complex file interactions require explicit use of upload() method for relevant files.
warnings.warn(self._file_transfer_api_warning("upload()"), PyFluentUserWarning)
loading data from '/mnt/pyfluent/exhaust_system.fmd' ...
classifying 115 edge occurrences ...
classified 67 feature edge edges by feature angle
classified 0 single-connected edges as feature edge(s)
classified 0 multi-connected edges as feature edge(s)
classified 0 sheet edges as feature edge(s)
classified 0 wire edges as feature edge(s)
classified 10 feature edges by group criteria
processing 8 zones ...
post-processing 0 zones for feature edge extraction ...
classifying 2 edge occurrences ...
classified 1 feature edge edge by feature angle
classified 0 single-connected edges as feature edge(s)
classified 0 multi-connected edges as feature edge(s)
classified 0 sheet edges as feature edge(s)
classified 0 wire edges as feature edge(s)
classified 10 feature edges by group criteria
processing 5 zones ...
post-processing 0 zones for feature edge extraction ...
classifying 13 edge occurrences ...
classified 8 feature edge edges by feature angle
classified 0 single-connected edges as feature edge(s)
classified 0 multi-connected edges as feature edge(s)
classified 0 sheet edges as feature edge(s)
classified 0 wire edges as feature edge(s)
classified 10 feature edges by group criteria
processing 8 zones ...
post-processing 0 zones for feature edge extraction ...
classifying 13 edge occurrences ...
classified 8 feature edge edges by feature angle
classified 0 single-connected edges as feature edge(s)
classified 0 multi-connected edges as feature edge(s)
classified 0 sheet edges as feature edge(s)
classified 0 wire edges as feature edge(s)
classified 10 feature edges by group criteria
processing 8 zones ...
post-processing 0 zones for feature edge extraction ...
classifying 50 edge occurrences ...
classified 16 feature edge edges by feature angle
classified 0 single-connected edges as feature edge(s)
classified 0 multi-connected edges as feature edge(s)
classified 0 sheet edges as feature edge(s)
classified 0 wire edges as feature edge(s)
classified 10 feature edges by group criteria
processing 8 zones ...
post-processing 0 zones for feature edge extraction ...
"Meshing objects are created"
.. GENERATED FROM PYTHON SOURCE LINES 121-124
Describe geometry and flow
~~~~~~~~~~~~~~~~~~~~~~~~~~
Describe the geometry and the flow characteristics.
.. GENERATED FROM PYTHON SOURCE LINES 124-148
.. code-block:: Python
describe_geom = meshing.workflow.TaskObject["Describe Geometry and Flow"]
describe_geom.Arguments.set_state(
{
"AddEnclosure": "No",
"CloseCaps": "Yes",
"FlowType": "Internal flow through the object",
}
)
describe_geom.UpdateChildTasks(SetupTypeChanged=False)
describe_geom.Arguments.set_state(
{
"AddEnclosure": "No",
"CloseCaps": "Yes",
"DescribeGeometryAndFlowOptions": {
"AdvancedOptions": True,
"ExtractEdgeFeatures": "Yes",
},
"FlowType": "Internal flow through the object",
}
)
describe_geom.UpdateChildTasks(SetupTypeChanged=False)
describe_geom.Execute()
.. GENERATED FROM PYTHON SOURCE LINES 149-152
Enclose openings
~~~~~~~~~~~~~~~~
Enclose (cap) any openings in the geometry.
.. GENERATED FROM PYTHON SOURCE LINES 154-157
.. image:: /_static/exhaust_system_011.png
:width: 400pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 159-162
.. image:: /_static/exhaust_system_012.png
:width: 400pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 162-288
.. code-block:: Python
capping = meshing.workflow.TaskObject["Enclose Fluid Regions (Capping)"]
capping.Arguments.set_state(
{
"CreatePatchPreferences": {
"ShowCreatePatchPreferences": False,
},
"PatchName": "inlet-1",
"SelectionType": "zone",
"ZoneSelectionList": ["inlet.1"],
}
)
capping.Arguments.set_state(
{
"CreatePatchPreferences": {
"ShowCreatePatchPreferences": False,
},
"PatchName": "inlet-1",
"SelectionType": "zone",
"ZoneLocation": [
"1",
"351.68205",
"-361.34322",
"-301.88668",
"396.96205",
"-332.84759",
"-266.69751",
"inlet.1",
],
"ZoneSelectionList": ["inlet.1"],
}
)
capping.AddChildToTask()
capping.InsertCompoundChildTask()
capping.Arguments.set_state({})
meshing.workflow.TaskObject["inlet-1"].Execute()
capping.Arguments.set_state(
{
"PatchName": "inlet-2",
"SelectionType": "zone",
"ZoneSelectionList": ["inlet.2"],
}
)
capping.Arguments.set_state(
{
"PatchName": "inlet-2",
"SelectionType": "zone",
"ZoneLocation": [
"1",
"441.68205",
"-361.34322",
"-301.88668",
"486.96205",
"-332.84759",
"-266.69751",
"inlet.2",
],
"ZoneSelectionList": ["inlet.2"],
}
)
capping.AddChildToTask()
capping.InsertCompoundChildTask()
capping.Arguments.set_state({})
meshing.workflow.TaskObject["inlet-2"].Execute()
capping.Arguments.set_state(
{
"PatchName": "inlet-3",
"SelectionType": "zone",
"ZoneSelectionList": ["inlet"],
}
)
capping.Arguments.set_state(
{
"PatchName": "inlet-3",
"SelectionType": "zone",
"ZoneLocation": [
"1",
"261.68205",
"-361.34322",
"-301.88668",
"306.96205",
"-332.84759",
"-266.69751",
"inlet",
],
"ZoneSelectionList": ["inlet"],
}
)
capping.AddChildToTask()
capping.InsertCompoundChildTask()
capping.Arguments.set_state({})
meshing.workflow.TaskObject["inlet-3"].Execute()
capping.Arguments.set_state(
{
"PatchName": "outlet-1",
"SelectionType": "zone",
"ZoneSelectionList": ["outlet"],
"ZoneType": "pressure-outlet",
}
)
capping.Arguments.set_state(
{
"PatchName": "outlet-1",
"SelectionType": "zone",
"ZoneLocation": [
"1",
"352.22702",
"-197.8957",
"84.102381",
"394.41707",
"-155.70565",
"84.102381",
"outlet",
],
"ZoneSelectionList": ["outlet"],
"ZoneType": "pressure-outlet",
}
)
capping.AddChildToTask()
capping.InsertCompoundChildTask()
capping.Arguments.set_state({})
meshing.workflow.TaskObject["outlet-1"].Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
removed 128 faces.
64 boundary nodes.
0 faces removed.
---------------- Patching of inlet-1 complete.
removed 128 faces.
64 boundary nodes.
0 faces removed.
---------------- Patching of inlet-2 complete.
removed 128 faces.
64 boundary nodes.
0 faces removed.
---------------- Patching of inlet-3 complete.
removed 128 faces.
64 boundary nodes.
0 faces removed.
---------------- Patching of outlet-1 complete.
.. GENERATED FROM PYTHON SOURCE LINES 289-292
Extract edge features
~~~~~~~~~~~~~~~~~~~~~
Extract edge features.
.. GENERATED FROM PYTHON SOURCE LINES 292-314
.. code-block:: Python
edge_features = meshing.workflow.TaskObject["Extract Edge Features"]
edge_features.Arguments.set_state(
{
"ExtractMethodType": "Intersection Loops",
"ObjectSelectionList": ["flow_pipe", "main"],
}
)
edge_features.AddChildToTask()
edge_features.InsertCompoundChildTask()
edge_group = meshing.workflow.TaskObject["edge-group-1"]
edge_group.Arguments.set_state(
{
"ExtractEdgesName": "edge-group-1",
"ExtractMethodType": "Intersection Loops",
"ObjectSelectionList": ["flow_pipe", "main"],
}
)
edge_features.Arguments.set_state({})
edge_group.Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
S_ExtractEdges:
ExtractEdgesName : edge-group-1
ExtractMethodType : Intersection Loops
SelectionType : object
ObjectSelectionList: (flow_pipe main)
GeomObjectSelectionList: ()
ZoneSelectionList: ()
ZoneLocation:()
LabelSelectionList : ()
FeatureAngleLocal : 40
IndividualCollective : collectively
SharpAngle : 110
.. GENERATED FROM PYTHON SOURCE LINES 315-318
Identify regions
~~~~~~~~~~~~~~~~
Identify regions.
.. GENERATED FROM PYTHON SOURCE LINES 318-392
.. code-block:: Python
identify_regions = meshing.workflow.TaskObject["Identify Regions"]
identify_regions.Arguments.set_state(
{
"SelectionType": "zone",
"X": 377.322045740589,
"Y": -176.800676988458,
"Z": -37.0764628583475,
"ZoneSelectionList": ["main.1"],
}
)
identify_regions.Arguments.set_state(
{
"SelectionType": "zone",
"X": 377.322045740589,
"Y": -176.800676988458,
"Z": -37.0764628583475,
"ZoneLocation": [
"1",
"213.32205",
"-225.28068",
"-158.25531",
"541.32205",
"-128.32068",
"84.102381",
"main.1",
],
"ZoneSelectionList": ["main.1"],
}
)
identify_regions.AddChildToTask()
identify_regions.InsertCompoundChildTask()
fluid_region_1 = meshing.workflow.TaskObject["fluid-region-1"]
fluid_region_1.Arguments.set_state(
{
"MaterialPointsName": "fluid-region-1",
"SelectionType": "zone",
"X": 377.322045740589,
"Y": -176.800676988458,
"Z": -37.0764628583475,
"ZoneLocation": [
"1",
"213.32205",
"-225.28068",
"-158.25531",
"541.32205",
"-128.32068",
"84.102381",
"main.1",
],
"ZoneSelectionList": ["main.1"],
}
)
identify_regions.Arguments.set_state({})
fluid_region_1.Execute()
identify_regions.Arguments.set_state(
{
"MaterialPointsName": "void-region-1",
"NewRegionType": "void",
"ObjectSelectionList": ["inlet-1", "inlet-2", "inlet-3", "main"],
"X": 374.722045740589,
"Y": -278.9775145640143,
"Z": -161.1700719416913,
}
)
identify_regions.AddChildToTask()
identify_regions.InsertCompoundChildTask()
identify_regions.Arguments.set_state({})
meshing.workflow.TaskObject["void-region-1"].Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
S_MaterialPoints:
AddChild: yes
MaterialPointsName : fluid-region-1
MptMethodType : Centroid of Objects
NewRegionType : fluid
LinkConstruction : no
SelectionType : zone
ZoneSelectionList : (main.1)
ZoneLocation : (1 213.32205 -225.28068 -158.25531 541.32205 -128.32068 84.102381 main.1)
LabelSelectionList : ()
ObjectSelectionList : ()
GraphicalSelection : #t
ShowCoordinates : #f
X : 377.32205
Y : -176.80068
Z : -37.076463
OffsetX : 0
OffsetY : 0
OffsetZ : 0
Material point fluid-region-1 is created.
S_MaterialPoints:
AddChild: yes
MaterialPointsName : void-region-1
MptMethodType : Centroid of Objects
NewRegionType : void
LinkConstruction : no
SelectionType : object
ZoneSelectionList : ()
ZoneLocation : ()
LabelSelectionList : ()
ObjectSelectionList : (inlet-1 inlet-2 inlet-3 main)
GraphicalSelection : #t
ShowCoordinates : #f
X : 374.72205
Y : -278.97751
Z : -161.17007
OffsetX : 0
OffsetY : 0
OffsetZ : 0
Material point void-region-1 is created.
.. GENERATED FROM PYTHON SOURCE LINES 393-396
Define thresholds for leakages
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Define thresholds for potential leakages.
.. GENERATED FROM PYTHON SOURCE LINES 396-425
.. code-block:: Python
leakage_threshold = meshing.workflow.TaskObject["Define Leakage Threshold"]
leakage_threshold.Arguments.set_state(
{
"AddChild": "yes",
"FlipDirection": True,
"PlaneDirection": "X",
"RegionSelectionSingle": "void-region-1",
}
)
leakage_threshold.AddChildToTask()
leakage_threshold.InsertCompoundChildTask()
leakage_1 = meshing.workflow.TaskObject["leakage-1"]
leakage_1.Arguments.set_state(
{
"AddChild": "yes",
"FlipDirection": True,
"LeakageName": "leakage-1",
"PlaneDirection": "X",
"RegionSelectionSingle": "void-region-1",
}
)
leakage_threshold.Arguments.set_state(
{
"AddChild": "yes",
}
)
leakage_1.Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
S_LeakageDetection:
AddChild: yes
LeakageName: leakage-1
SelectionType: identified region
DeadRegionsList: ()
RegionSelectionSingle: (void-region-1)
DeadRegionsSize: 6.4
PlaneClippingValue: 50
PlaneDirection: X
FlipDirection: #t
.. GENERATED FROM PYTHON SOURCE LINES 426-429
Review region settings
~~~~~~~~~~~~~~~~~~~~~~
Review the region settings.
.. GENERATED FROM PYTHON SOURCE LINES 429-467
.. code-block:: Python
update_region = meshing.workflow.TaskObject["Update Region Settings"]
update_region.Arguments.set_state(
{
"AllRegionFilterCategories": ["2"] * 5 + ["1"] * 2,
"AllRegionLeakageSizeList": ["none"] * 6 + ["6.4"],
"AllRegionLinkedConstructionSurfaceList": ["n/a"] * 6 + ["no"],
"AllRegionMeshMethodList": ["none"] * 6 + ["wrap"],
"AllRegionNameList": [
"main",
"flow_pipe",
"outpipe3",
"object2",
"object1",
"void-region-1",
"fluid-region-1",
],
"AllRegionOversetComponenList": ["no"] * 7,
"AllRegionSourceList": ["object"] * 5 + ["mpt"] * 2,
"AllRegionTypeList": ["void"] * 6 + ["fluid"],
"AllRegionVolumeFillList": ["none"] * 6 + ["tet"],
"FilterCategory": "Identified Regions",
"OldRegionLeakageSizeList": [""],
"OldRegionMeshMethodList": ["wrap"],
"OldRegionNameList": ["fluid-region-1"],
"OldRegionOversetComponenList": ["no"],
"OldRegionTypeList": ["fluid"],
"OldRegionVolumeFillList": ["hexcore"],
"RegionLeakageSizeList": [""],
"RegionMeshMethodList": ["wrap"],
"RegionNameList": ["fluid-region-1"],
"RegionOversetComponenList": ["no"],
"RegionTypeList": ["fluid"],
"RegionVolumeFillList": ["tet"],
}
)
update_region.Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
---------------- Regions Updated
.. GENERATED FROM PYTHON SOURCE LINES 468-471
Set mesh control options
~~~~~~~~~~~~~~~~~~~~~~~~
Set mesh control options.
.. GENERATED FROM PYTHON SOURCE LINES 471-474
.. code-block:: Python
meshing.workflow.TaskObject["Choose Mesh Control Options"].Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
(WrapSizeFieldFileName) not found in dict
(TargeSizeFieldFileName) not found in dict
.. GENERATED FROM PYTHON SOURCE LINES 475-478
Generate surface mesh
~~~~~~~~~~~~~~~~~~~~~
Generate the surface mesh.
.. GENERATED FROM PYTHON SOURCE LINES 480-483
.. image:: /_static/exhaust_system_013.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 483-486
.. code-block:: Python
meshing.workflow.TaskObject["Generate the Surface Mesh"].Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Writing "/mnt/pyfluent/FM_441db29107b4_152/TaskObject16.msh.h5" ...
writing 19 node zones
writing 11 edge zones
writing 13 face zones
done.Writing "/mnt/pyfluent/FM_441db29107b4_152//ftm-wf-out-exhaust_system.msh.h5" ...
writing 19 node zones
writing 11 edge zones
writing 13 face zones
done.Scoped sizing written to the file "/mnt/pyfluent/FM_441db29107b4_152//ftm-wf-out-exhaust_system-target.szcontrol" successfully
Scoped sizing written to the file "/mnt/pyfluent/FM_441db29107b4_152//ftm-wf-out-exhaust_system-initial.szcontrol" successfully
Reading "/mnt/pyfluent/FM_441db29107b4_152//ftm-wf-out-exhaust_system-target.sf"...
Read 41961 vertices
initializing octree...
refining octree...
projecting...
Wrap-v2 projection mode set to 1
Projection completed in 0.408891 s, 121658.339264 nodes/sec
Index exceed valid range, 2.
No grid of ID, 2.
Min mesh size 0.000000 is too small.Max mesh size 0.000000 is too small. initializing octree...
refining octree...
Reading "/mnt/pyfluent/FM_441db29107b4_152//ftm-wf-out-exhaust_system-target.sf"...
Read 41961 vertices
Found 0 nodes with invalid normals
Found 0 nodes with invalid normals
Found 0 faces with invalid dihedral angle
Gentle Improve for wrapper-surf-fluid-region-1 in 0.0038980166 minutes (6.4967275e-05 hours)
Gentle Improve for wrapper-surf-fluid-region-1 in 0.0012791872 minutes (2.1320052e-05 hours)
Gentle Improve for wrapper-surf-fluid-region-1 in 0.00121243 minutes (2.0207498e-05 hours)
Reading "/mnt/pyfluent/FM_441db29107b4_152/ftm-wf-out-exhaust_system.msh.h5" ...
3D mesh
nodes: 23303
edges: 4754
faces: 33738
cells: 0
reading 19 node zones
reading 11 edge zones
reading 13 face zones
appending mesh...
done.
generating pointers...done.
extracting boundary entities...
37422 boundary nodes.
61954 boundary faces.
14 boundary face zones.
done.
Surface Mesh:
==============================================================================
Wrapping Method ----------------------------------standard
Computed SF in -----------------------------------0.023204919 minutes (0.00038674865 hours).
Automatic closing of holes (inner wrap) in -----0.059723751 minutes (0.00099539585 hours).
Wrapped all material point regions in ------------0.1734685 minutes (0.0028911417 hours).
Surface mesh all fluid objects in ----------------0 minutes (0 hours).
Surface Improved in ------------------------------0.054714084 minutes (0.00091190139 hours).
Surface Improved (resolve_int) in ----------------0.0082226356 minutes (0.00013704393 hours).
Connected all fluid mesh objects in --------------2.6861827e-06 minutes (4.4769711e-08 hours).
Compute Volume-Fill Regions in -------------------0 minutes (0 hours).
Solid surface mesh generated and Improved in -----0 minutes (0 hours).
==============================================================================
Total (surface mesh) 0.31938111 minutes (0.0053230185 hours)
------------------------- --------------------- -------------------- ---------------- ----------
name skewed-cells (> 0.80) averaged-skewness maximum-skewness face count
------------------------- --------------------- -------------------- ---------------- ----------
fluid-region-1 0 0.037079067 0.78417367 28216
------------------------- --------------------- -------------------- ---------------- ----------
name skewed-cells (> 0.80) averaged-skewness maximum-skewness face count
------------------------- --------------------- -------------------- ---------------- ----------
Overall Summary 0 0.037079067 0.78417367 28216
.. GENERATED FROM PYTHON SOURCE LINES 487-490
Confirm and update boundaries
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Confirm and update the boundaries.
.. GENERATED FROM PYTHON SOURCE LINES 490-493
.. code-block:: Python
meshing.workflow.TaskObject["Update Boundaries"].Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
---------------- Boundary Conditions Updated
.. GENERATED FROM PYTHON SOURCE LINES 494-497
Add boundary layers
~~~~~~~~~~~~~~~~~~~
Add boundary layers.
.. GENERATED FROM PYTHON SOURCE LINES 497-511
.. code-block:: Python
meshing.workflow.TaskObject["Add Boundary Layers"].AddChildToTask()
meshing.workflow.TaskObject["Add Boundary Layers"].InsertCompoundChildTask()
meshing.workflow.TaskObject["aspect-ratio_1"].Arguments.set_state(
{
"BLControlName": "aspect-ratio_1",
}
)
meshing.workflow.TaskObject["Add Boundary Layers"].Arguments.set_state({})
meshing.workflow.TaskObject["aspect-ratio_1"].Execute()
.. GENERATED FROM PYTHON SOURCE LINES 512-515
Generate volume mesh
~~~~~~~~~~~~~~~~~~~~
Generate the volume mesh.
.. GENERATED FROM PYTHON SOURCE LINES 517-520
.. image:: /_static/exhaust_system_014.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 520-539
.. code-block:: Python
volume_mesh_gen = meshing.workflow.TaskObject["Generate the Volume Mesh"]
volume_mesh_gen.Arguments.set_state(
{
"AllRegionNameList": [
"main",
"flow_pipe",
"outpipe3",
"object2",
"object1",
"void-region-1",
"fluid-region-1",
],
"AllRegionSizeList": ["11.33375"] * 7,
"AllRegionVolumeFillList": ["none"] * 6 + ["tet"],
"EnableParallel": True,
}
)
volume_mesh_gen.Execute()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Writing "/mnt/pyfluent/FM_441db29107b4_152/TaskObject23.msh.h5" ...
writing 21 node zones
writing 11 edge zones
writing 22 face zones
done.
Warning: growing more than 1 layer of prisms may take a long time.
warning: material point fluid-region-1 ignored because face zone label with same name exists.
done
creating backup for object "fluid-region-1"...done.
Generating initial mesh...
the existing Size Field will be used.
Refining mesh...
All cells met the target quality.
No cells below quality 0.0001.
Release: (25 1 0 2025)
Build Time: Nov 10 2024 02:36:51 EST
Build ID: 10209
Mesh Info for exhaust_system:
Total cell count: 254944
Wall-Clock Usage (Estimate) for exhaust_system:
Surface Mesh:
==============================================================================
Wrapping Method ----------------------------------standard
Computed SF in -----------------------------------0.023204919 minutes (0.00038674865 hours).
Automatic closing of holes (inner wrap) in -----0.059723751 minutes (0.00099539585 hours).
Wrapped all material point regions in ------------0.1734685 minutes (0.0028911417 hours).
Surface mesh all fluid objects in ----------------0 minutes (0 hours).
Surface Improved in ------------------------------0.054714084 minutes (0.00091190139 hours).
Surface Improved (resolve_int) in ----------------0.0082226356 minutes (0.00013704393 hours).
Connected all fluid mesh objects in --------------2.6861827e-06 minutes (4.4769711e-08 hours).
Compute Volume-Fill Regions in -------------------0 minutes (0 hours).
Solid surface mesh generated and Improved in -----0 minutes (0 hours).
==============================================================================
Total (surface mesh) 0.31938111 minutes (0.0053230185 hours)
Volume Mesh:
==============================================================================
Quality Method -----------------------------------Orthogonal
Continuous Prisms generated and Improved in ------0.053169866 minutes (0.00088616444 hours).
Volume-fill in -----------------------------------0.057126085 minutes (0.00095210142 hours).
Generated Rapid-octree in ------------------------0 minutes (0 hours).
Solid volume mesh generated and Improved in ------0 minutes (0 hours).
Rezoned and final volume mesh improve in ---------0.013953571 minutes (0.00023255951 hours).
==============================================================================
Total (volume mesh) 0.12424952 minutes (0.0020708254 hours)
==============================================================================
Total 0.44363063 minutes (0.0073938439 hours)
==============================================================================
Memory Usage for exhaust_system:
------------------------------------------------------------------------------
| Virtual Mem Usage (GB) | Resident Mem Usage(GB) |
ID | Current Peak | Current Peak | Page Faults
------------------------------------------------------------------------------
host | 1.03567 1.093 | 0.535416 0.535416 | 0
n0 | 3.51926 3.93314 | 0.434498 1.13361 | 864
n1 | 3.02101 3.02101 | 0.217873 0.217873 | 92
------------------------------------------------------------------------------
Total | 7.57594 8.04715 | 1.18779 1.88689 | 956
------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------
| Virtual Mem Usage (GB) | Resident Mem Usage(GB) | System Mem (GB)
Hostname | Current Peak | Current Peak |
------------------------------------------------------------------------------------------------
441db29107b4 | 7.57594 8.04715 | 1.18779 1.88689 | 31.3416
------------------------------------------------------------------------------------------------
Total | 7.57594 8.04715 | 1.18779 1.88689 |
------------------------------------------------------------------------------------------------
Quality Report for exhaust_system:
Report of Cell Orthogonal Quality:
Region Name Quality<0.100 Quality<0.040 Min Quality Cell Count
------------------------- -------------- -------------- ------------- ----------
fluid-region-1 2 0 0.065 254944
Region Name Quality<0.100 Quality<0.040 Min Quality Cell Count
------------------------- -------------- -------------- ------------- ----------
Overall Summary 2 0 0.065 254944
Parallel Partitions:
General Info:
Total faces : 598508
Total cells : 254944
Participating nodes : (0)
Non-participating nodes : (1)
Faces Info:
node 0 : 598508 (100.0%) faces => 476186 triangular, 122322 quadrilateral
Cells Info:
node 0 : 254944 (100.0%) cells => 173575 tetrahedral, 81369 wedge
.. GENERATED FROM PYTHON SOURCE LINES 540-543
Check mesh
~~~~~~~~~~
Check the mesh.
.. GENERATED FROM PYTHON SOURCE LINES 543-546
.. code-block:: Python
meshing.tui.mesh.check_mesh()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Domain extents.
x-coordinate: min = 2.133220e+02, max = 5.413220e+02.
y-coordinate: min = -3.613432e+02, max = -1.283207e+02.
z-coordinate: min = -3.692476e+02, max = 8.410238e+01.
Volume statistics.
minimum volume: 1.144296e-01.
maximum volume: 3.218042e+02.
total volume: 5.479143e+06.
Face area statistics.
minimum face area: 4.247814e-03.
maximum face area: 1.743890e+04.
average face area: 1.214504e+01.
Checking number of nodes per edge.
Checking number of nodes per face.
Checking number of nodes per cell.
Checking number of faces/neighbors per cell.
Checking cell faces/neighbors.
Checking isolated cells.
Checking face handedness.
Checking periodic face pairs.
Checking face children.
Checking face zone boundary conditions.
Checking for invalid node coordinates.
Checking poly cells.
Checking zones.
Checking neighborhood.
Checking modified centroid.
Checking non-positive or too small area.
Checking face zones thread type.
.. GENERATED FROM PYTHON SOURCE LINES 547-555
Solve and postprocess
---------------------
Once you have completed the fault tolerate meshing workflow, you can solve and
postprcess the results.
Switch to solution mode
~~~~~~~~~~~~~~~~~~~~~~~
Switch to the solution mode.
.. GENERATED FROM PYTHON SOURCE LINES 555-560
.. code-block:: Python
solver = meshing.switch_to_solver()
solver.mesh.check()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Preparing...
deleting exterior entities...done.
unused zone boundary-node-17173 removed
unused zone boundary-node-17174 removed
*********************************************
Info: Your license enables 4-way parallel execution.
For faster simulations, please start the application with the appropriate parallel options.
*********************************************
Transferring mesh
creating threads... done
transferring nodes... done
transferring cells... done
transferring faces... done
post mesh transfer operations... done
done
Building...
mesh
auto partitioning mesh by Metis (fast),
distributing mesh
parts..,
faces..,
nodes..,
cells..,
bandwidth reduction using Reverse Cuthill-McKee: 99399/1555 = 63.9222
materials,
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'mesh' is deprecated. Use 'settings.mesh' instead.
warnings.warn(
interface,
domains,
zones,
outlet-1
inlet-3
inlet-2
inlet-1
interior--fluid-region-1
main.1
flow-pipe
outpipe3.1
object2.1
object1.1
fluid-region-1
surfaces,
parallel,
Done.
Mesh is now scaled to meters.
Domain Extents:
x-coordinate: min (m) = 2.154117e-01, max (m) = 5.349967e-01
y-coordinate: min (m) = -3.600511e-01, max (m) = -1.293207e-01
z-coordinate: min (m) = -3.626890e-01, max (m) = 8.410238e-02
Volume statistics:
minimum volume (m3): 1.144296e-10
maximum volume (m3): 3.218042e-07
total volume (m3): 5.479143e-03
Face area statistics:
minimum face area (m2): 4.376851e-07
maximum face area (m2): 1.004804e-04
Checking mesh.....................................
Done.
Note: Settings to improve the robustness of pathline and
particle tracking have been automatically enabled.
.. GENERATED FROM PYTHON SOURCE LINES 561-564
Select turbulence model
~~~~~~~~~~~~~~~~~~~~~~~
Select the kw sst turbulence model.
.. GENERATED FROM PYTHON SOURCE LINES 564-570
.. code-block:: Python
viscous = solver.setup.models.viscous
viscous.model = "k-omega"
viscous.k_omega_model = "sst"
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'setup' is deprecated. Use 'settings.setup' instead.
warnings.warn(
.. GENERATED FROM PYTHON SOURCE LINES 571-575
Set velocity and turbulence boundary conditions for first inlet
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Set the velocity and turbulence boundary conditions for the first inlet
(``inlet-1``).
.. GENERATED FROM PYTHON SOURCE LINES 575-587
.. code-block:: Python
boundary_conditions = solver.setup.boundary_conditions
boundary_conditions.velocity_inlet["inlet-1"] = {
"momentum": {
"velocity_specification_method": "Magnitude, Normal to Boundary",
"velocity": {
"value": 1,
},
},
}
.. GENERATED FROM PYTHON SOURCE LINES 588-592
Set same boundary conditions for other velocity inlets
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Set the same boundary conditions for the other velocity inlets (``inlet_2``
and ``inlet_3``).
.. GENERATED FROM PYTHON SOURCE LINES 592-598
.. code-block:: Python
boundary_conditions.copy(
from_="inlet-1",
to=["inlet-2", "inlet-3"],
)
.. rst-class:: sphx-glr-script-out
.. code-block:: none
Copy inlet-1 boundary conditions to inlet-2
Copy inlet-1 boundary conditions to inlet-3
.. GENERATED FROM PYTHON SOURCE LINES 599-602
Set boundary conditions at outlet
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Set the boundary conditions at the outlet (``outlet-1``).
.. GENERATED FROM PYTHON SOURCE LINES 602-605
.. code-block:: Python
boundary_conditions.pressure_outlet["outlet-1"].turbulence.turbulent_intensity = 0.05
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/solver/flobject.py:638: DeprecatedSettingWarning: Note: A newer syntax is available to perform the last operation:
solver.settings.setup.boundary_conditions.pressure_outlet['outlet-1'].turbulence.backflow_turbulent_intensity = 0.05
warnings.warn(
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/solver/flobject.py:644: DeprecatedSettingWarning:
Execute the following code to suppress future warnings like the above:
>>> import warnings
>>> warnings.filterwarnings("ignore", category=DeprecatedSettingWarning)
warnings.warn(
.. GENERATED FROM PYTHON SOURCE LINES 606-609
Initialize flow field
~~~~~~~~~~~~~~~~~~~~~
Initialize the flow field using hybrid initialization.
.. GENERATED FROM PYTHON SOURCE LINES 609-612
.. code-block:: Python
solver.solution.initialization.hybrid_initialize()
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'solution' is deprecated. Use 'settings.solution' instead.
warnings.warn(
Initialize using the hybrid initialization method.
Checking case topology...
-This case has both inlets & outlets
-Pressure information is not available at the boundaries.
Case will be initialized with constant pressure
iter scalar-0
1 1.000000e+00
2 1.886826e-04
3 2.976111e-05
4 7.135616e-06
5 4.943363e-06
6 2.097743e-06
7 4.540569e-06
8 1.147279e-06
9 1.794886e-06
10 5.654136e-07
Hybrid initialization is done.
.. GENERATED FROM PYTHON SOURCE LINES 613-616
Start calculation
~~~~~~~~~~~~~~~~~
Start the calculation by requesting 100 iterations.
.. GENERATED FROM PYTHON SOURCE LINES 618-621
.. image:: /_static/exhaust_system_015.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 621-624
.. code-block:: Python
solver.solution.run_calculation.iterate(iter_count=100)
.. rst-class:: sphx-glr-script-out
.. code-block:: none
iter continuity x-velocity y-velocity z-velocity k omega time/iter
1 1.0000e+00 6.7418e-03 7.0694e-03 7.6976e-03 6.1154e-01 2.4642e+00 0:03:01 99
2 4.4833e-01 4.3935e-03 4.8473e-03 6.2646e-03 1.5854e-01 1.4572e-01 0:03:11 98
3 3.4778e-01 2.1989e-03 2.5633e-03 4.2732e-03 1.0596e-01 9.4538e-02 0:03:21 97
4 3.3726e-01 1.4369e-03 1.7859e-03 2.9289e-03 6.7911e-02 4.9773e-02 0:03:17 96
5 3.3060e-01 1.0284e-03 1.3192e-03 2.7360e-03 5.7997e-02 3.0470e-02 0:03:12 95
6 3.0177e-01 7.5285e-04 1.0452e-03 2.2205e-03 4.5130e-02 2.1640e-02 0:03:04 94
7 2.8441e-01 6.3555e-04 9.0600e-04 2.1031e-03 3.6571e-02 1.7475e-02 0:02:57 93
8 2.7115e-01 5.4613e-04 7.9723e-04 1.8930e-03 3.4003e-02 1.4616e-02 0:02:51 92
9 2.6300e-01 4.9449e-04 7.2689e-04 1.8194e-03 2.9212e-02 1.2101e-02 0:02:46 91
10 2.5467e-01 4.5576e-04 6.7209e-04 1.6906e-03 2.5669e-02 1.0116e-02 0:02:43 90
11 2.4456e-01 4.3103e-04 6.2969e-04 1.6334e-03 2.2100e-02 8.7913e-03 0:02:39 89
iter continuity x-velocity y-velocity z-velocity k omega time/iter
12 2.3250e-01 4.0031e-04 5.8518e-04 1.5243e-03 1.9822e-02 7.6612e-03 0:02:36 88
13 2.2151e-01 3.7506e-04 5.5014e-04 1.4455e-03 1.7574e-02 6.7422e-03 0:02:33 87
14 2.1178e-01 3.6052e-04 5.2275e-04 1.3554e-03 1.5824e-02 5.9711e-03 0:02:30 86
15 2.0318e-01 3.5049e-04 4.9832e-04 1.2749e-03 1.3909e-02 5.5931e-03 0:02:27 85
16 1.9556e-01 3.4204e-04 4.7550e-04 1.1779e-03 1.2525e-02 5.0598e-03 0:02:25 84
17 1.8978e-01 3.4969e-04 4.6821e-04 1.1136e-03 1.1441e-02 4.6735e-03 0:02:22 83
18 1.8413e-01 3.5355e-04 4.5687e-04 1.0297e-03 1.0285e-02 4.4034e-03 0:02:20 82
19 1.7874e-01 3.6234e-04 4.5549e-04 9.6792e-04 9.3925e-03 4.1395e-03 0:02:18 81
20 1.7336e-01 3.7288e-04 4.5835e-04 9.1258e-04 8.6909e-03 3.9563e-03 0:02:16 80
21 1.6815e-01 3.8238e-04 4.6124e-04 8.6381e-04 8.1392e-03 3.8180e-03 0:02:14 79
22 1.6310e-01 3.9194e-04 4.6523e-04 8.2043e-04 7.7027e-03 3.7144e-03 0:02:13 78
iter continuity x-velocity y-velocity z-velocity k omega time/iter
23 1.5850e-01 4.0019e-04 4.6742e-04 7.8069e-04 7.3627e-03 3.6847e-03 0:02:11 77
24 1.5338e-01 4.0693e-04 4.6845e-04 7.4360e-04 7.1837e-03 3.6419e-03 0:02:09 76
25 1.4846e-01 4.1247e-04 4.6816e-04 7.1219e-04 6.9706e-03 3.5397e-03 0:02:07 75
26 1.4343e-01 4.1338e-04 4.6352e-04 6.8001e-04 6.7116e-03 3.3734e-03 0:02:06 74
27 1.3871e-01 4.1202e-04 4.5615e-04 6.5267e-04 6.4315e-03 3.2018e-03 0:02:04 73
28 1.3359e-01 4.0536e-04 4.4413e-04 6.2377e-04 6.1107e-03 3.0672e-03 0:02:02 72
29 1.2899e-01 3.9623e-04 4.3083e-04 5.9738e-04 5.8117e-03 2.9287e-03 0:02:01 71
30 1.2404e-01 3.8285e-04 4.1374e-04 5.7114e-04 5.4870e-03 2.8008e-03 0:01:59 70
31 1.1991e-01 3.6822e-04 3.9590e-04 5.4790e-04 5.1916e-03 2.6525e-03 0:01:57 69
32 1.1568e-01 3.5132e-04 3.7561e-04 5.2277e-04 4.8260e-03 2.5055e-03 0:01:56 68
33 1.1170e-01 3.3306e-04 3.5624e-04 5.0030e-04 4.5415e-03 2.3853e-03 0:01:54 67
iter continuity x-velocity y-velocity z-velocity k omega time/iter
34 1.0810e-01 3.1432e-04 3.3755e-04 4.7858e-04 4.2329e-03 2.2487e-03 0:01:52 66
35 1.0529e-01 2.9596e-04 3.2007e-04 4.5868e-04 3.9387e-03 2.1150e-03 0:01:50 65
36 1.0213e-01 2.7753e-04 3.0281e-04 4.3686e-04 3.6150e-03 1.9525e-03 0:01:49 64
37 9.9215e-02 2.6007e-04 2.8713e-04 4.1714e-04 3.3286e-03 1.8437e-03 0:01:58 63
38 9.6112e-02 2.4349e-04 2.7183e-04 3.9452e-04 3.0415e-03 1.6985e-03 0:01:54 62
39 9.3473e-02 2.2944e-04 2.5804e-04 3.7596e-04 2.8013e-03 1.5999e-03 0:01:50 61
40 9.0926e-02 2.1663e-04 2.4430e-04 3.5447e-04 2.5649e-03 1.4950e-03 0:01:47 60
41 8.8429e-02 2.0597e-04 2.3176e-04 3.3734e-04 2.3638e-03 1.4068e-03 0:01:44 59
42 8.6004e-02 1.9672e-04 2.1953e-04 3.1911e-04 2.1816e-03 1.3191e-03 0:01:42 58
43 8.3401e-02 1.8910e-04 2.0846e-04 3.0379e-04 2.0288e-03 1.2553e-03 0:01:39 57
44 8.1065e-02 1.8216e-04 1.9832e-04 2.8991e-04 1.9224e-03 1.2056e-03 0:01:37 56
iter continuity x-velocity y-velocity z-velocity k omega time/iter
45 7.8636e-02 1.7642e-04 1.8979e-04 2.7821e-04 1.8103e-03 1.1682e-03 0:01:37 55
46 7.6544e-02 1.7171e-04 1.8283e-04 2.6946e-04 1.7706e-03 1.1478e-03 0:01:35 54
47 7.4352e-02 1.6759e-04 1.7742e-04 2.6162e-04 1.7031e-03 1.1229e-03 0:01:33 53
48 7.2500e-02 1.6465e-04 1.7316e-04 2.5602e-04 1.6996e-03 1.1070e-03 0:01:31 52
49 7.0515e-02 1.6195e-04 1.6977e-04 2.5074e-04 1.6784e-03 1.0910e-03 0:01:29 51
50 6.8661e-02 1.6012e-04 1.6730e-04 2.4714e-04 1.6799e-03 1.0825e-03 0:01:26 50
51 6.7139e-02 1.5817e-04 1.6534e-04 2.4331e-04 1.6737e-03 1.0760e-03 0:01:25 49
52 6.5776e-02 1.5686e-04 1.6318e-04 2.4077e-04 1.6719e-03 1.0641e-03 0:01:23 48
53 6.4596e-02 1.5541e-04 1.6142e-04 2.3802e-04 1.6658e-03 1.0595e-03 0:01:20 47
54 6.3405e-02 1.5406e-04 1.5951e-04 2.3486e-04 1.6512e-03 1.0414e-03 0:01:19 46
55 6.2298e-02 1.5221e-04 1.5742e-04 2.3182e-04 1.6401e-03 1.0326e-03 0:01:17 45
iter continuity x-velocity y-velocity z-velocity k omega time/iter
56 6.1197e-02 1.5033e-04 1.5522e-04 2.2790e-04 1.6135e-03 1.0089e-03 0:01:15 44
57 6.0197e-02 1.4800e-04 1.5319e-04 2.2404e-04 1.5926e-03 1.0031e-03 0:01:13 43
58 5.9176e-02 1.4553e-04 1.5087e-04 2.1955e-04 1.5516e-03 9.7462e-04 0:01:11 42
59 5.8275e-02 1.4312e-04 1.4871e-04 2.1538e-04 1.5297e-03 9.6861e-04 0:01:09 41
60 5.7431e-02 1.4008e-04 1.4592e-04 2.1004e-04 1.4886e-03 9.4153e-04 0:01:08 40
61 5.6669e-02 1.3723e-04 1.4357e-04 2.0583e-04 1.4693e-03 9.3786e-04 0:01:06 39
62 5.5824e-02 1.3382e-04 1.4073e-04 2.0088e-04 1.4351e-03 9.1581e-04 0:01:04 38
63 5.4908e-02 1.3119e-04 1.3867e-04 1.9697e-04 1.4280e-03 9.2132e-04 0:01:03 37
64 5.3961e-02 1.2834e-04 1.3634e-04 1.9316e-04 1.4067e-03 9.0390e-04 0:01:01 36
65 5.3099e-02 1.2653e-04 1.3468e-04 1.9067e-04 1.4149e-03 9.0923e-04 0:00:59 35
66 5.2255e-02 1.2492e-04 1.3290e-04 1.8877e-04 1.4184e-03 9.0004e-04 0:00:58 34
iter continuity x-velocity y-velocity z-velocity k omega time/iter
67 5.1326e-02 1.2389e-04 1.3132e-04 1.8726e-04 1.4395e-03 9.1417e-04 0:00:56 33
68 5.0501e-02 1.2268e-04 1.3026e-04 1.8647e-04 1.4523e-03 9.0340e-04 0:00:54 32
69 4.9613e-02 1.2196e-04 1.2897e-04 1.8520e-04 1.4698e-03 9.1213e-04 0:00:53 31
70 4.8758e-02 1.2123e-04 1.2831e-04 1.8449e-04 1.4741e-03 9.0030e-04 0:00:54 30
71 4.7914e-02 1.2019e-04 1.2690e-04 1.8295e-04 1.4799e-03 8.9886e-04 0:00:51 29
72 4.7155e-02 1.1899e-04 1.2605e-04 1.8210e-04 1.4729e-03 8.8811e-04 0:00:49 28
73 4.6333e-02 1.1751e-04 1.2430e-04 1.7983e-04 1.4631e-03 8.7960e-04 0:00:48 27
74 4.5469e-02 1.1604e-04 1.2313e-04 1.7869e-04 1.4466e-03 8.7170e-04 0:00:46 26
75 4.4650e-02 1.1422e-04 1.2123e-04 1.7641e-04 1.4286e-03 8.5824e-04 0:00:44 25
76 4.3930e-02 1.1251e-04 1.2009e-04 1.7537e-04 1.4068e-03 8.5256e-04 0:00:42 24
77 4.3343e-02 1.1055e-04 1.1846e-04 1.7265e-04 1.3825e-03 8.3935e-04 0:00:40 23
iter continuity x-velocity y-velocity z-velocity k omega time/iter
78 4.2828e-02 1.0892e-04 1.1742e-04 1.7158e-04 1.3619e-03 8.3421e-04 0:00:38 22
79 4.2525e-02 1.0728e-04 1.1604e-04 1.6906e-04 1.3361e-03 8.2104e-04 0:00:36 21
80 4.2332e-02 1.0592e-04 1.1556e-04 1.6815e-04 1.3216e-03 8.1590e-04 0:00:34 20
81 4.2180e-02 1.0485e-04 1.1465e-04 1.6598e-04 1.2960e-03 8.1204e-04 0:00:32 19
82 4.2152e-02 1.0400e-04 1.1442e-04 1.6565e-04 1.2857e-03 8.1009e-04 0:00:31 18
83 4.2218e-02 1.0353e-04 1.1400e-04 1.6404e-04 1.2588e-03 8.0806e-04 0:00:29 17
84 4.2412e-02 1.0313e-04 1.1401e-04 1.6389e-04 1.2437e-03 8.0265e-04 0:00:27 16
85 4.2615e-02 1.0289e-04 1.1341e-04 1.6235e-04 1.2130e-03 8.0008e-04 0:00:25 15
86 4.2906e-02 1.0243e-04 1.1324e-04 1.6181e-04 1.1938e-03 7.9395e-04 0:00:24 14
87 4.2910e-02 1.0213e-04 1.1241e-04 1.5999e-04 1.1614e-03 7.9305e-04 0:00:22 13
88 4.2705e-02 1.0128e-04 1.1160e-04 1.5916e-04 1.1397e-03 7.8441e-04 0:00:20 12
iter continuity x-velocity y-velocity z-velocity k omega time/iter
89 4.2491e-02 1.0045e-04 1.1010e-04 1.5689e-04 1.1083e-03 7.7885e-04 0:00:19 11
90 4.2205e-02 9.8946e-05 1.0866e-04 1.5505e-04 1.0849e-03 7.6966e-04 0:00:17 10
91 4.1767e-02 9.7578e-05 1.0620e-04 1.5178e-04 1.0626e-03 7.6507e-04 0:00:15 9
92 4.1414e-02 9.5664e-05 1.0429e-04 1.4932e-04 1.0510e-03 7.6196e-04 0:00:14 8
93 4.0974e-02 9.3764e-05 1.0197e-04 1.4665e-04 1.0498e-03 7.6072e-04 0:00:12 7
94 4.0478e-02 9.1822e-05 1.0054e-04 1.4532e-04 1.0608e-03 7.6488e-04 0:00:10 6
95 3.9664e-02 9.0039e-05 9.8699e-05 1.4373e-04 1.0795e-03 7.6090e-04 0:00:08 5
96 3.8952e-02 8.8867e-05 9.7508e-05 1.4332e-04 1.0981e-03 7.6884e-04 0:00:07 4
97 3.8208e-02 8.7681e-05 9.5866e-05 1.4286e-04 1.1259e-03 7.7028e-04 0:00:05 3
98 3.7663e-02 8.7012e-05 9.4769e-05 1.4311e-04 1.1488e-03 7.7952e-04 0:00:03 2
99 3.7032e-02 8.6199e-05 9.3444e-05 1.4372e-04 1.1792e-03 7.8071e-04 0:00:02 1
iter continuity x-velocity y-velocity z-velocity k omega time/iter
100 3.6574e-02 8.5899e-05 9.2456e-05 1.4410e-04 1.1980e-03 7.8597e-04 0:00:00 0
.. GENERATED FROM PYTHON SOURCE LINES 625-627
Write the case and data files
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. GENERATED FROM PYTHON SOURCE LINES 627-633
.. code-block:: Python
solver.file.write(
file_type="case-data",
file_name="exhaust_system.cas.h5",
)
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'file' is deprecated. Use 'settings.file' instead.
warnings.warn(
Fast-loading "/ansys_inc/v251/fluent/fluent25.1.0/addons/afd/lib/hdfio.bin"
Done.
Writing to 441db29107b4:"/mnt/pyfluent/exhaust_system.cas.h5" in NODE0 mode and compression level 1 ...
Grouping cells for Laplace smoothing ...
254944 cells, 1 zone ...
598508 faces, 23 zones ...
93848 nodes, 1 zone ...
Done.
Writing boundary layer flags ...
Done.
Done.
Writing to 441db29107b4:"/mnt/pyfluent/exhaust_system.dat.h5" in NODE0 mode and compression level 1 ...
Writing results.
Done.
.. GENERATED FROM PYTHON SOURCE LINES 634-639
Configure graphics picture export
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Since Fluent is being run without the GUI, we will need to export plots as
picture files. Edit the picture settings to use a custom resolution so that
the images are large enough.
.. GENERATED FROM PYTHON SOURCE LINES 639-647
.. code-block:: Python
graphics = solver.results.graphics
# use_window_resolution option not active inside containers or Ansys Lab environment
if graphics.picture.use_window_resolution.is_active():
graphics.picture.use_window_resolution = False
graphics.picture.x_resolution = 1920
graphics.picture.y_resolution = 1440
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'results' is deprecated. Use 'settings.results' instead.
warnings.warn(
.. GENERATED FROM PYTHON SOURCE LINES 648-652
Create path lines
~~~~~~~~~~~~~~~~~
Create path lines highlighting the flow field, display it, then export the
image for inspection.
.. GENERATED FROM PYTHON SOURCE LINES 654-657
.. image:: /_static/exhaust_system_016.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 657-672
.. code-block:: Python
graphics.pathline["pathlines-1"] = {
"field": "time",
"accuracy_control": {
"tolerance": 0.001,
},
"skip": 5,
"release_from_surfaces": ["inlet-1", "inlet-2", "inlet-3"],
}
graphics.pathline["pathlines-1"].display()
graphics.views.restore_view(view_name="isometric")
graphics.views.auto_scale()
graphics.picture.save_picture(file_name="pathlines-1.png")
.. rst-class:: sphx-glr-script-out
.. code-block:: none
number tracked = 164, escaped = 139, incomplete = 25
.. GENERATED FROM PYTHON SOURCE LINES 673-676
Create iso-surface
~~~~~~~~~~~~~~~~~~
Create an iso-surface through the manifold geometry.
.. GENERATED FROM PYTHON SOURCE LINES 676-683
.. code-block:: Python
solver.results.surfaces.iso_surface["surf-x-coordinate"] = {
"field": "x-coordinate",
"zones": ["fluid-region-1"],
"iso_values": [0.38],
}
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'results' is deprecated. Use 'settings.results' instead.
warnings.warn(
.. GENERATED FROM PYTHON SOURCE LINES 684-688
Create contours of velocity magnitude
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Create contours of the velocity magnitude throughout the manifold
along with the mesh. Display it and export the image for inspection.
.. GENERATED FROM PYTHON SOURCE LINES 690-693
.. image:: /_static/exhaust_system_017.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 693-714
.. code-block:: Python
graphics.contour["contour-velocity"] = {
"field": "velocity-magnitude",
"surfaces_list": ["surf-x-coordinate"],
"node_values": False,
"range_option": {
"option": "auto-range-on",
"auto_range_on": {
"global_range": False,
},
},
}
graphics.mesh["mesh-1"] = {
"surfaces_list": "*",
}
graphics.contour["contour-velocity"].display()
graphics.views.restore_view(view_name="right")
graphics.views.auto_scale()
graphics.picture.save_picture(file_name="contour-velocity.png")
.. GENERATED FROM PYTHON SOURCE LINES 715-719
Create scene
~~~~~~~~~~~~
Create a scene containing the mesh and the contours. Display it and export
the image for inspection.
.. GENERATED FROM PYTHON SOURCE LINES 721-724
.. image:: /_static/exhaust_system_018.png
:width: 500pt
:align: center
.. GENERATED FROM PYTHON SOURCE LINES 724-736
.. code-block:: Python
solver.results.scene["scene-1"] = {}
scene1 = solver.results.scene["scene-1"]
scene1.graphics_objects.add(name="mesh-1")
scene1.graphics_objects["mesh-1"].transparency = 90
scene1.graphics_objects.add(name="contour-velocity")
scene1.display()
graphics.views.camera.position(xyz=[1.70, 1.14, 0.29])
graphics.views.camera.up_vector(xyz=[-0.66, 0.72, -0.20])
graphics.picture.save_picture(file_name="scene-1.png")
.. rst-class:: sphx-glr-script-out
.. code-block:: none
/home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:308: DeprecatedSettingWarning: 'results' is deprecated. Use 'settings.results' instead.
warnings.warn(
.. GENERATED FROM PYTHON SOURCE LINES 737-740
Close Fluent
~~~~~~~~~~~~
Close Fluent.
.. GENERATED FROM PYTHON SOURCE LINES 740-742
.. code-block:: Python
solver.exit()
.. rst-class:: sphx-glr-timing
**Total running time of the script:** (4 minutes 43.013 seconds)
.. _sphx_glr_download_examples_00-fluent_exhaust_system_settings_api.py:
.. only:: html
.. container:: sphx-glr-footer sphx-glr-footer-example
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: exhaust_system_settings_api.ipynb <exhaust_system_settings_api.ipynb>`
.. container:: sphx-glr-download sphx-glr-download-python
:download:`Download Python source code: exhaust_system_settings_api.py <exhaust_system_settings_api.py>`
.. container:: sphx-glr-download sphx-glr-download-zip
:download:`Download zipped: exhaust_system_settings_api.zip <exhaust_system_settings_api.zip>`
.. only:: html
.. rst-class:: sphx-glr-signature
`Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_