.. 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 ` 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:360: 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_81bc825e1617_152/TaskObject16.msh.h5" ... writing 19 node zones writing 11 edge zones writing 13 face zones done.Writing "/mnt/pyfluent/FM_81bc825e1617_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_81bc825e1617_152//ftm-wf-out-exhaust_system-target.szcontrol" successfully Scoped sizing written to the file "/mnt/pyfluent/FM_81bc825e1617_152//ftm-wf-out-exhaust_system-initial.szcontrol" successfully Reading "/mnt/pyfluent/FM_81bc825e1617_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 0.290430 s, 171280.515098 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_81bc825e1617_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 0.0039806485 minutes (6.6344473e-05 hours) Gentle Improve for wrapper-surf-fluid-region-1 in 0.0015631477 minutes (2.6052727e-05 hours) Gentle Improve for wrapper-surf-fluid-region-1 in 0.00149405 minutes (2.4901099e-05 hours) Reading "/mnt/pyfluent/FM_81bc825e1617_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 -----------------------------------0.027729217 minutes (0.00046215362 hours). Automatic closing of holes (inner wrap) in -----0.065927351 minutes (0.0010987892 hours). Wrapped all material point regions in ------------0.19955444 minutes (0.0033259073 hours). Surface mesh all fluid objects in ----------------0 minutes (0 hours). Surface Improved in ------------------------------0.062078714 minutes (0.0010346452 hours). Surface Improved (resolve_int) in ----------------0.0089001656 minutes (0.00014833609 hours). Connected all fluid mesh objects in --------------3.2981237e-06 minutes (5.4968728e-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) 0.3642353 minutes (0.0060705883 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_81bc825e1617_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 -----------------------------------0.027729217 minutes (0.00046215362 hours). Automatic closing of holes (inner wrap) in -----0.065927351 minutes (0.0010987892 hours). Wrapped all material point regions in ------------0.19955444 minutes (0.0033259073 hours). Surface mesh all fluid objects in ----------------0 minutes (0 hours). Surface Improved in ------------------------------0.062078714 minutes (0.0010346452 hours). Surface Improved (resolve_int) in ----------------0.0089001656 minutes (0.00014833609 hours). Connected all fluid mesh objects in --------------3.2981237e-06 minutes (5.4968728e-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) 0.3642353 minutes (0.0060705883 hours) Volume Mesh: ============================================================================== Quality Method -----------------------------------Orthogonal Continuous Prisms generated and Improved in ------0.062954867 minutes (0.0010492478 hours). Volume-fill in -----------------------------------0.063223533 minutes (0.0010537255 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 ---------0.013819599 minutes (0.00023032665 hours). ============================================================================== Total (volume mesh) 0.139998 minutes (0.0023333 hours) ============================================================================== Total 0.5042333 minutes (0.0084038883 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 | 0.535271 0.535271 | 0 n0 | 3.51719 3.93201 | 0.433681 1.13491 | 871 n1 | 3.01906 3.01906 | 0.211823 0.211823 | 91 ------------------------------------------------------------------------------ Total | 7.57192 8.04407 | 1.18077 1.88201 | 962 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------ | Virtual Mem Usage (GB) | Resident Mem Usage(GB) | System Mem (GB) Hostname | Current Peak | Current Peak | ------------------------------------------------------------------------------------------------ 81bc825e1617 | 7.57192 8.04407 | 1.18077 1.88201 | 31.3416 ------------------------------------------------------------------------------------------------ Total | 7.57192 8.04407 | 1.18077 1.88201 | ------------------------------------------------------------------------------------------------ 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 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, interface, domains, zones, outlet-1 /home/ansys/actions-runner/_work/pyfluent/pyfluent/src/ansys/fluent/core/session_solver.py:309: DeprecatedSettingWarning: 'mesh' is deprecated. Use 'settings.mesh' instead. warnings.warn( 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:309: 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:637: 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:643: 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:309: 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 0:03:35 99 2 4.4833e-01 4.3935e-03 4.8473e-03 6.2646e-03 1.5854e-01 1.4572e-01 0:03:47 98 3 3.4778e-01 2.1989e-03 2.5633e-03 4.2732e-03 1.0596e-01 9.4538e-02 0:04:00 97 4 3.3726e-01 1.4369e-03 1.7859e-03 2.9289e-03 6.7911e-02 4.9773e-02 0:03:54 96 5 3.3060e-01 1.0284e-03 1.3192e-03 2.7360e-03 5.7997e-02 3.0470e-02 0:03:49 95 6 3.0177e-01 7.5285e-04 1.0452e-03 2.2205e-03 4.5130e-02 2.1640e-02 0:03:39 94 7 2.8441e-01 6.3555e-04 9.0600e-04 2.1031e-03 3.6571e-02 1.7475e-02 0:03:31 93 8 2.7115e-01 5.4613e-04 7.9723e-04 1.8930e-03 3.4003e-02 1.4616e-02 0:03:24 92 9 2.6300e-01 4.9449e-04 7.2689e-04 1.8194e-03 2.9212e-02 1.2101e-02 0:03:19 91 10 2.5467e-01 4.5576e-04 6.7209e-04 1.6906e-03 2.5669e-02 1.0116e-02 0:03:14 90 11 2.4456e-01 4.3103e-04 6.2969e-04 1.6334e-03 2.2100e-02 8.7913e-03 0:03:09 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 0:03:05 88 13 2.2151e-01 3.7506e-04 5.5014e-04 1.4455e-03 1.7574e-02 6.7422e-03 0:03:01 87 14 2.1178e-01 3.6052e-04 5.2275e-04 1.3554e-03 1.5824e-02 5.9711e-03 0:02:58 86 15 2.0318e-01 3.5049e-04 4.9832e-04 1.2749e-03 1.3909e-02 5.5931e-03 0:02:55 85 16 1.9556e-01 3.4204e-04 4.7550e-04 1.1779e-03 1.2525e-02 5.0598e-03 0:02:51 84 17 1.8978e-01 3.4969e-04 4.6821e-04 1.1136e-03 1.1441e-02 4.6735e-03 0:02:48 83 18 1.8413e-01 3.5355e-04 4.5687e-04 1.0297e-03 1.0285e-02 4.4034e-03 0:02:46 82 19 1.7874e-01 3.6234e-04 4.5549e-04 9.6792e-04 9.3925e-03 4.1395e-03 0:02:44 81 20 1.7336e-01 3.7288e-04 4.5835e-04 9.1258e-04 8.6909e-03 3.9563e-03 0:02:42 80 21 1.6815e-01 3.8238e-04 4.6124e-04 8.6381e-04 8.1392e-03 3.8180e-03 0:02:39 79 22 1.6310e-01 3.9194e-04 4.6523e-04 8.2043e-04 7.7027e-03 3.7144e-03 0:02:37 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 0:02:34 77 24 1.5338e-01 4.0693e-04 4.6845e-04 7.4360e-04 7.1837e-03 3.6419e-03 0:02:32 76 25 1.4846e-01 4.1247e-04 4.6816e-04 7.1219e-04 6.9706e-03 3.5397e-03 0:02:30 75 26 1.4343e-01 4.1338e-04 4.6352e-04 6.8001e-04 6.7116e-03 3.3734e-03 0:02:28 74 27 1.3871e-01 4.1202e-04 4.5615e-04 6.5267e-04 6.4315e-03 3.2018e-03 0:02:26 73 28 1.3359e-01 4.0536e-04 4.4413e-04 6.2377e-04 6.1107e-03 3.0672e-03 0:02:23 72 29 1.2899e-01 3.9623e-04 4.3083e-04 5.9738e-04 5.8117e-03 2.9287e-03 0:02:21 71 30 1.2404e-01 3.8285e-04 4.1374e-04 5.7114e-04 5.4870e-03 2.8008e-03 0:02:19 70 31 1.1991e-01 3.6822e-04 3.9590e-04 5.4790e-04 5.1916e-03 2.6525e-03 0:02:17 69 32 1.1568e-01 3.5132e-04 3.7561e-04 5.2277e-04 4.8260e-03 2.5055e-03 0:02:15 68 33 1.1170e-01 3.3306e-04 3.5624e-04 5.0030e-04 4.5415e-03 2.3853e-03 0:02:13 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 0:02:11 66 35 1.0529e-01 2.9596e-04 3.2007e-04 4.5868e-04 3.9387e-03 2.1150e-03 0:02:10 65 36 1.0213e-01 2.7753e-04 3.0281e-04 4.3686e-04 3.6150e-03 1.9525e-03 0:02:08 64 37 9.9215e-02 2.6007e-04 2.8713e-04 4.1714e-04 3.3286e-03 1.8437e-03 0:02:05 63 38 9.6112e-02 2.4349e-04 2.7183e-04 3.9452e-04 3.0415e-03 1.6985e-03 0:02:03 62 39 9.3473e-02 2.2944e-04 2.5804e-04 3.7596e-04 2.8013e-03 1.5999e-03 0:02:02 61 40 9.0926e-02 2.1663e-04 2.4430e-04 3.5447e-04 2.5649e-03 1.4950e-03 0:01:59 60 41 8.8429e-02 2.0597e-04 2.3176e-04 3.3734e-04 2.3638e-03 1.4068e-03 0:01:57 59 42 8.6004e-02 1.9672e-04 2.1953e-04 3.1911e-04 2.1816e-03 1.3191e-03 0:01:55 58 43 8.3401e-02 1.8910e-04 2.0846e-04 3.0379e-04 2.0288e-03 1.2553e-03 0:01:53 57 44 8.1065e-02 1.8216e-04 1.9832e-04 2.8991e-04 1.9224e-03 1.2056e-03 0:01:51 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 0:01:49 55 46 7.6544e-02 1.7171e-04 1.8283e-04 2.6946e-04 1.7706e-03 1.1478e-03 0:01:47 54 47 7.4352e-02 1.6759e-04 1.7742e-04 2.6162e-04 1.7031e-03 1.1229e-03 0:01:45 53 48 7.2500e-02 1.6465e-04 1.7316e-04 2.5602e-04 1.6996e-03 1.1070e-03 0:01:43 52 49 7.0515e-02 1.6195e-04 1.6977e-04 2.5074e-04 1.6784e-03 1.0910e-03 0:01:41 51 50 6.8661e-02 1.6012e-04 1.6730e-04 2.4714e-04 1.6799e-03 1.0825e-03 0:01:39 50 51 6.7139e-02 1.5817e-04 1.6534e-04 2.4331e-04 1.6737e-03 1.0760e-03 0:01:38 49 52 6.5776e-02 1.5686e-04 1.6318e-04 2.4077e-04 1.6719e-03 1.0641e-03 0:01:36 48 53 6.4596e-02 1.5541e-04 1.6142e-04 2.3802e-04 1.6658e-03 1.0595e-03 0:01:34 47 54 6.3405e-02 1.5406e-04 1.5951e-04 2.3486e-04 1.6512e-03 1.0414e-03 0:01:32 46 55 6.2298e-02 1.5221e-04 1.5742e-04 2.3182e-04 1.6401e-03 1.0326e-03 0:01:30 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 0:01:28 44 57 6.0197e-02 1.4800e-04 1.5319e-04 2.2404e-04 1.5926e-03 1.0031e-03 0:01:26 43 58 5.9176e-02 1.4553e-04 1.5087e-04 2.1955e-04 1.5516e-03 9.7462e-04 0:01:24 42 59 5.8275e-02 1.4312e-04 1.4871e-04 2.1538e-04 1.5297e-03 9.6861e-04 0:01:22 41 60 5.7431e-02 1.4008e-04 1.4592e-04 2.1004e-04 1.4886e-03 9.4153e-04 0:01:20 40 61 5.6669e-02 1.3723e-04 1.4357e-04 2.0583e-04 1.4693e-03 9.3786e-04 0:01:17 39 62 5.5824e-02 1.3382e-04 1.4073e-04 2.0088e-04 1.4351e-03 9.1581e-04 0:01:15 38 63 5.4908e-02 1.3119e-04 1.3867e-04 1.9697e-04 1.4280e-03 9.2132e-04 0:01:13 37 64 5.3961e-02 1.2834e-04 1.3634e-04 1.9316e-04 1.4067e-03 9.0390e-04 0:01:11 36 65 5.3099e-02 1.2653e-04 1.3468e-04 1.9067e-04 1.4149e-03 9.0923e-04 0:01:09 35 66 5.2255e-02 1.2492e-04 1.3290e-04 1.8877e-04 1.4184e-03 9.0004e-04 0:01:07 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 0:01:05 33 68 5.0501e-02 1.2268e-04 1.3026e-04 1.8647e-04 1.4523e-03 9.0340e-04 0:01:03 32 69 4.9613e-02 1.2196e-04 1.2897e-04 1.8520e-04 1.4698e-03 9.1213e-04 0:01:01 31 70 4.8758e-02 1.2123e-04 1.2831e-04 1.8449e-04 1.4741e-03 9.0030e-04 0:01:03 30 71 4.7914e-02 1.2019e-04 1.2690e-04 1.8295e-04 1.4799e-03 8.9886e-04 0:01:00 29 72 4.7155e-02 1.1899e-04 1.2605e-04 1.8210e-04 1.4729e-03 8.8811e-04 0:00:58 28 73 4.6333e-02 1.1751e-04 1.2430e-04 1.7983e-04 1.4631e-03 8.7960e-04 0:00:55 27 74 4.5469e-02 1.1604e-04 1.2313e-04 1.7869e-04 1.4466e-03 8.7170e-04 0:00:53 26 75 4.4650e-02 1.1422e-04 1.2123e-04 1.7641e-04 1.4286e-03 8.5824e-04 0:00:51 25 76 4.3930e-02 1.1251e-04 1.2009e-04 1.7537e-04 1.4068e-03 8.5256e-04 0:00:48 24 77 4.3343e-02 1.1055e-04 1.1846e-04 1.7265e-04 1.3825e-03 8.3935e-04 0:00:46 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 0:00:44 22 79 4.2525e-02 1.0728e-04 1.1604e-04 1.6906e-04 1.3361e-03 8.2104e-04 0:00:42 21 80 4.2332e-02 1.0592e-04 1.1556e-04 1.6815e-04 1.3216e-03 8.1590e-04 0:00:40 20 81 4.2180e-02 1.0485e-04 1.1465e-04 1.6598e-04 1.2960e-03 8.1204e-04 0:00:38 19 82 4.2152e-02 1.0400e-04 1.1442e-04 1.6565e-04 1.2857e-03 8.1009e-04 0:00:36 18 83 4.2218e-02 1.0353e-04 1.1400e-04 1.6404e-04 1.2588e-03 8.0806e-04 0:00:34 17 84 4.2412e-02 1.0313e-04 1.1401e-04 1.6389e-04 1.2437e-03 8.0265e-04 0:00:32 16 85 4.2615e-02 1.0289e-04 1.1341e-04 1.6235e-04 1.2130e-03 8.0008e-04 0:00:30 15 86 4.2906e-02 1.0243e-04 1.1324e-04 1.6181e-04 1.1938e-03 7.9395e-04 0:00:28 14 87 4.2910e-02 1.0213e-04 1.1241e-04 1.5999e-04 1.1614e-03 7.9305e-04 0:00:26 13 88 4.2705e-02 1.0128e-04 1.1160e-04 1.5916e-04 1.1397e-03 7.8441e-04 0:00:24 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 0:00:22 11 90 4.2205e-02 9.8946e-05 1.0866e-04 1.5505e-04 1.0849e-03 7.6966e-04 0:00:20 10 91 4.1767e-02 9.7578e-05 1.0620e-04 1.5178e-04 1.0626e-03 7.6507e-04 0:00:18 9 92 4.1414e-02 9.5664e-05 1.0429e-04 1.4932e-04 1.0510e-03 7.6196e-04 0:00:16 8 93 4.0974e-02 9.3764e-05 1.0197e-04 1.4665e-04 1.0498e-03 7.6072e-04 0:00:14 7 94 4.0478e-02 9.1822e-05 1.0054e-04 1.4532e-04 1.0608e-03 7.6488e-04 0:00:12 6 95 3.9664e-02 9.0039e-05 9.8699e-05 1.4373e-04 1.0795e-03 7.6090e-04 0:00:10 5 96 3.8952e-02 8.8867e-05 9.7508e-05 1.4332e-04 1.0981e-03 7.6884e-04 0:00:08 4 97 3.8208e-02 8.7681e-05 9.5866e-05 1.4286e-04 1.1259e-03 7.7028e-04 0:00:06 3 98 3.7663e-02 8.7012e-05 9.4769e-05 1.4311e-04 1.1488e-03 7.7952e-04 0:00:04 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:309: 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 81bc825e1617:"/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 81bc825e1617:"/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:309: 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:309: 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:309: 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:** (5 minutes 26.401 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 ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: exhaust_system_settings_api.py ` .. container:: sphx-glr-download sphx-glr-download-zip :download:`Download zipped: exhaust_system_settings_api.zip ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_