## On this page # result:transient rayleigh integration Last update: 31.07.2026 **Version: 0.0.0** ## Description Computes the transient Rayleigh integral ## Inputs This table lists the input pins for this operator. Input pins define the data that the operator requires to perform its operation. Some inputs are required, while others are optional and provide additional configuration. Each parameter is detailed in the sections that follow the table. Pin numberNameStatusExpected type(s)0[fields\_container](#input_0)Required[`fields_container`](../../core-concepts/dpf-types.md#fields-container)**1**[mesh](#input_1)Required[`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container)**2**[time\_scoping](#input_2)Required[`int32`](../../core-concepts/dpf-types.md#standard-types), [`vector`](../../core-concepts/dpf-types.md#standard-types), [`scoping`](../../core-concepts/dpf-types.md#scoping)**3**[field](#input_3)Required[`field`](../../core-concepts/dpf-types.md#field)**4**[observation\_mesh](#input_4)Required[`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region)**5**[mass\_density](#input_5)Required[`double`](../../core-concepts/dpf-types.md#standard-types)**6**[speed\_of\_sound](#input_6)Required[`double`](../../core-concepts/dpf-types.md#standard-types) ### fields\_container (Pin 0) - **Required:** Yes - **Expected type(s):** [`fields_container`](../../core-concepts/dpf-types.md#fields-container) the input field container expects acceleration fields ### mesh (Pin 1) - **Required:** Yes - **Expected type(s):** [`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container) The meshes region in this pin has to be boundary or skin mesh. This is the source meshes. ### time\_scoping (Pin 2) - **Required:** Yes - **Expected type(s):** [`int32`](../../core-concepts/dpf-types.md#standard-types), [`vector`](../../core-concepts/dpf-types.md#standard-types), [`scoping`](../../core-concepts/dpf-types.md#scoping) Load step number (if it's specified, the Transient rayleigh integration is computed only on the substeps of this step) or time scoping ### field (Pin 3) - **Required:** Yes - **Expected type(s):** [`field`](../../core-concepts/dpf-types.md#field) The field represents the coordinates of the observation position. It should be specified if not observation mesh is provided. ### observation\_mesh (Pin 4) - **Required:** Yes - **Expected type(s):** [`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region) This is the observation mesh region ### mass\_density (Pin 5) - **Required:** Yes - **Expected type(s):** [`double`](../../core-concepts/dpf-types.md#standard-types) Mass density (if it's not specified, default value of the air is applied). ### speed\_of\_sound (Pin 6) - **Required:** Yes - **Expected type(s):** [`double`](../../core-concepts/dpf-types.md#standard-types) Speed of sound (if it's not specified, default value of the speed of sound in the air is applied). ## Outputs This table lists the output pins for this operator. Output pins provide the results of the operator's computation and can be connected to inputs of other operators or retrieved for further processing. Each output is detailed in the sections that follow the table. Pin numberNameExpected type(s)0[fields\_container](#output_0)[`fields_container`](../../core-concepts/dpf-types.md#fields-container) ### fields\_container (Pin 0) - **Expected type(s):** [`fields_container`](../../core-concepts/dpf-types.md#fields-container) ## Configurations This operator supports [configuration options](../../core-concepts/operator-configurations.md) that modify its behavior. ### [mutex](../../core-concepts/operator-configurations.md#mutex) - **Expected type(s):** [`bool`](../../core-concepts/dpf-types.md#standard-types) - **Default value:** false If this option is set to true, the shared memory is prevented from being simultaneously accessed by multiple threads. ## Scripting This operator can be accessed through scripting interfaces using these identifiers. **Category**: result **Plugin**: core **Scripting name**: transient\_rayleigh\_integration **Full name**: result.transient\_rayleigh\_integration **Internal name**: transient\_rayleigh\_integration **License**: any\_dpf\_supported\_increments ## Examples These examples demonstrate how to use this operator in different programming environments. Each example shows how to instantiate the operator, connect the required inputs, and retrieve the output. C++```cpp #include "dpf_api.h" ansys::dpf::Operator op("transient_rayleigh_integration"); // operator instantiation op.connect(0, my_fields_container); op.connect(1, my_mesh); op.connect(2, my_time_scoping); op.connect(3, my_field); op.connect(4, my_observation_mesh); op.connect(5, my_mass_density); op.connect(6, my_speed_of_sound); ansys::dpf::FieldsContainer my_fields_container = op.getOutput(0); ``` CPython```python import ansys.dpf.core as dpf op = dpf.operators.result.transient_rayleigh_integration() # operator instantiation op.inputs.fields_container.connect(my_fields_container) op.inputs.mesh.connect(my_mesh) op.inputs.time_scoping.connect(my_time_scoping) op.inputs.field.connect(my_field) op.inputs.observation_mesh.connect(my_observation_mesh) op.inputs.mass_density.connect(my_mass_density) op.inputs.speed_of_sound.connect(my_speed_of_sound) my_fields_container = op.outputs.fields_container() ``` IPython```python import mech_dpf import Ans.DataProcessing as dpf op = dpf.operators.result.transient_rayleigh_integration() # operator instantiation op.inputs.fields_container.Connect(my_fields_container) op.inputs.mesh.Connect(my_mesh) op.inputs.time_scoping.Connect(my_time_scoping) op.inputs.field.Connect(my_field) op.inputs.observation_mesh.Connect(my_observation_mesh) op.inputs.mass_density.Connect(my_mass_density) op.inputs.speed_of_sound.Connect(my_speed_of_sound) my_fields_container = op.outputs.fields_container.GetData() ``` ## Changelog - Version 0.0.0: Initial release.