pogona.Object
- class pogona.Object[source]
Bases:
Component
Attributes
Unique name of this component, unless it is "Generic component".
Whether to insert dummy points at the boundary of the mesh, and where exactly.
Object index, set by the scene manager.
Path to all OpenFOAM simulation cases.
Notify subscribed sensors based on object mesh cells.
Names of the inlets in the OpenFOAM mesh.
Names of the outlets in the OpenFOAM mesh.
The name of this type of object.
Methods
__init__
()finalize
(simulation_kernel)find_latest_time_step
(path)- return
The highest-valued subdirectory of path that is named
get_closest_cell_centre_id
(position_global)- returns
Array of closest cell centers to position.
If an Object supports sensor subscriptions, some OpenFOAM case with a non-zero flow rate should exist (i.e., a vector field for which this Object has self.is_active == True).
get_flow
(simulation_kernel, position_global, ...)- returns
A unique string for the current configuration of this object.
get_outlet_area
(outlet_name)get_path
([use_latest_time_step, fallback])- param use_latest_time_step
Find the latest time step in path.
initialize
(simulation_kernel, init_stage)Use
InitStages
to initialize this Component instance.load_current_vector_field
(simulation_kernel)Update the flow rate inside this Object based on the changed flow rate of the inlet with name inlet_name, then propagate this change to any Object connected to this Object's outlets.
process_new_time_step
(simulation_kernel, ...)set_arguments
(**kwargs)Read arguments as key value pairs and set this component's member variables accordingly.
- finalize(simulation_kernel: SimulationKernel)
- static find_latest_time_step(path: str) str [source]
- Returns
The highest-valued subdirectory of path that is named only after a floating point value. E.g., if there are ‘{path}/0/’ and ‘{path}/0.1/’, this will return ‘0.1’.
- get_closest_cell_centre_id(position_global: ndarray) Optional[ndarray] [source]
- Returns
Array of closest cell centers to position. If there’s only one position, output is squeezed. None if this Object is inactive. See documentation of cKDTree.query().
- abstract get_fallback_mesh_index() Optional[str] [source]
If an Object supports sensor subscriptions, some OpenFOAM case with a non-zero flow rate should exist (i.e., a vector field for which this Object has self.is_active == True). If this object is initially inactive, however, we still need to know where to find this mesh for the initialization of the SensorManager.
- Returns
A valid mesh index independent of this Object’s is_active status. None if this Object does not support sensor subscriptions.
- get_flow(simulation_kernel: SimulationKernel, position_global: ndarray, sim_time: float)[source]
- abstract get_mesh_index() str [source]
- Returns
A unique string for the current configuration of this object. Used for caching.
- get_path(use_latest_time_step=False, fallback=False) str [source]
- Parameters
use_latest_time_step – Find the latest time step in path. If False, use this Object’s _default_time_str, which may still be set to ‘latest’, which has the same effect.
fallback – Use get_fallback_mesh_index instead of get_mesh_index.
- Returns
Path to the OpenFOAM files for this object.
- get_transformation() Transformation [source]
- initialize(simulation_kernel: SimulationKernel, init_stage: InitStages)[source]
Use
InitStages
to initialize this Component instance.
- load_current_vector_field(simulation_kernel: SimulationKernel)[source]
- abstract process_changed_inlet_flow_rate(simulation_kernel: SimulationKernel, inlet_name: str, flow_rate: float)[source]
Update the flow rate inside this Object based on the changed flow rate of the inlet with name inlet_name, then propagate this change to any Object connected to this Object’s outlets.
Should also update is_active accordingly.
- process_new_time_step(simulation_kernel: SimulationKernel, notification_stage: NotificationStages)
- set_arguments(**kwargs)
Read arguments as key value pairs and set this component’s member variables accordingly. Validity of the argument values will be checked in
initialize()
.
- component_name = 'Generic component'
Unique name of this component, unless it is “Generic component”.
- dummy_boundary_points = 'NONE'
Whether to insert dummy points at the boundary of the mesh, and where exactly. This may help with interpolation.
- id
Unique integer component ID
- inlets: List[str]
Names of the inlets in the OpenFOAM mesh.
- property is_active
- name: str
The name of this type of object. Not a unique identifier like Component.component_name!
- object_id = -1
Object index, set by the scene manager.
- openfoam_cases_path = ''
Path to all OpenFOAM simulation cases. Subclasses may use this as the base path to find their respective meshes via get_path().
- outlets: List[str]
Names of the outlets in the OpenFOAM mesh.
- rotation = [0, 0, 0]
- scale = [1, 1, 1]
- translation = [0, 0, 0]
- use_sensor_subscriptions = 'USE_DEFAULT'
Notify subscribed sensors based on object mesh cells. This speeds up simulation. Only disable this if you are constrained by memory or if the object does not have a mesh in the first place. If None, use the SensorManager’s default_use_sensor_subscriptions.
- property walls_patch_names