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"# Periodic BCs\n",
"\n",
"\n",
"\n",
"This notebook sets up a rotationally periodic steady-state simulation of the [TU Berlin TurboLab Stator](https://www.caeses.com/wp-content/uploads/2016/07/TU_Berlin_Stator.pdf \"TU berlin stator\") using the Flow360 Python API. It focuses on applying **Periodic Boundary Conditions** using rotational periodicity solver settings.\n",
"\n",
"**Note:** The settings in this example are by no means a validation setup; they are crafted to showcase the capabilities of Flow360 and we have intentionally reduced node count and example FC cost. For rigorous validation, modify the settings as needed."
],
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{
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"source": [
"## 1. Imports and Project Setup\n",
"\n",
"We import the necessary Flow360 libraries and load the project geometry from the pre-existing volume mesh file provided by the `TutorialPeriodicBC` example module. The project is created directly from a pre generated volume mesh. The grid unit length is in millimeters (mm)."
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"start_time": "2025-12-02T19:08:06.075221Z"
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"tags": [
"setup"
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"source": [
"import flow360 as fl\n",
"from flow360.examples import TutorialPeriodicBC\n",
"\n",
"# Fetch the necessary volume mesh file\n",
"TutorialPeriodicBC.get_files()\n",
"\n",
"# Create the project from the pre-existing volume mesh\n",
"project = fl.Project.from_volume_mesh(\n",
" TutorialPeriodicBC.mesh_filename,\n",
" length_unit=\"mm\",\n",
" name=\"Periodic BCs\",\n",
")\n",
"\n",
"# Get the volume mesh object to define surfaces for models\n",
"volume_mesh = project.volume_mesh"
],
"execution_count": 1,
"outputs": [
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"Output()"
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"[12:27:44] INFO : VolumeMesh successfully submitted: \n",
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" name = Tutorial Periodic Boundary Condition from Python \n",
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" status = uploaded \n",
" project id = prj-6d073a5d-7cca-4517-b25d-59ca8ae66623 \n",
" \n",
"[12:28:03] INFO : using: SI unit system for unit inference. \n",
" INFO : Density and viscosity were calculated based on input data, ThermalState will be automatically \n",
" created. \n",
" INFO : using: SI unit system for unit inference. \n",
" INFO : using: SI unit system for unit inference. \n",
" INFO : using: SI unit system for unit inference. \n",
" INFO : using: SI unit system for unit inference. \n",
" INFO : Density and viscosity were calculated based on input data, ThermalState will be automatically \n",
" created. \n",
" INFO : using: SI unit system for unit inference. \n",
"[12:28:05] INFO : Successfully submitted: \n",
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" name = Tutorial Periodic Boundary Condition from Python \n",
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" \n",
"[12:33:31] INFO : Saved to /tmp/tmpk0dinw1f/ d01c7941-039c-4eda-bd68-fef55912ced2.csv \n",
""
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