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 # `PhysicsRegion`

 Last update: 09.03.2026 

<a id="ansys.mechanical.stubs.v251.Ansys.ACT.Automation.Mechanical.PhysicsRegion"></a>

#### *class* Ansys.ACT.Automation.Mechanical.PhysicsRegion

Bases: [`object`](https://docs.python.org/3/library/functions.html#object)

Defines a PhysicsRegion.

<a id="overview"></a>

## Overview

### Methods

NameDescription[`Activate`](#PhysicsRegion.Activate)Activate the current object.[`AddComment`](#PhysicsRegion.AddComment)Creates a new child Comment.[`AddFigure`](#PhysicsRegion.AddFigure)Creates a new child Figure.[`AddImage`](#PhysicsRegion.AddImage)Creates a new child Image.[`CopyTo`](#PhysicsRegion.CopyTo)Copies all visible properties from this object to another.[`CreateParameter`](#PhysicsRegion.CreateParameter)Creates a new parameter for a Property.[`Delete`](#PhysicsRegion.Delete)Run the Delete action.[`Duplicate`](#PhysicsRegion.Duplicate)Creates a copy of the current DataModelObject.[`GetChildren`](#PhysicsRegion.GetChildren)Gets the list of children, filtered by type.[`GetParameter`](#PhysicsRegion.GetParameter)Gets the parameter corresponding to the given property.[`GroupAllSimilarChildren`](#PhysicsRegion.GroupAllSimilarChildren)Run the GroupAllSimilarChildren action.[`GroupSimilarObjects`](#PhysicsRegion.GroupSimilarObjects)Run the GroupSimilarObjects action.[`PropertyByAPIName`](#PhysicsRegion.PropertyByAPIName)Get a property by its API name.[`PropertyByName`](#PhysicsRegion.PropertyByName)Get a property by its unique name.[`RemoveParameter`](#PhysicsRegion.RemoveParameter)Removes the parameter from the parameter set corresponding to the given property.[`RenameBasedOnDefinition`](#PhysicsRegion.RenameBasedOnDefinition)Run the RenameBasedOnDefinition action.[`SelectInvalidBodiesOnPhysicsRegion`](#PhysicsRegion.SelectInvalidBodiesOnPhysicsRegion)Run the SelectInvalidBodiesOnPhysicsRegion action to select bodies that are not valid.### Properties

NameDescription[`Acoustics`](#PhysicsRegion.Acoustics)Gets or sets the Acoustics.[`ArtificiallyMatchedLayers`](#PhysicsRegion.ArtificiallyMatchedLayers)Gets or sets the ArtificiallyMatchedLayers.[`Children`](#PhysicsRegion.Children)Gets the list of children.[`Comments`](#PhysicsRegion.Comments)Gets the list of associated comments.[`DataModelObjectCategory`](#PhysicsRegion.DataModelObjectCategory)Gets the current DataModelObject’s category.[`Electric`](#PhysicsRegion.Electric)Gets or sets the Electric.[`ElectrostaticForce`](#PhysicsRegion.ElectrostaticForce)Gets or sets the ElectrostaticForce.[`ElementMorphing`](#PhysicsRegion.ElementMorphing)Gets or sets the ElementMorphing.[`EvanescentWaveAttenuation`](#PhysicsRegion.EvanescentWaveAttenuation)Gets or sets the EvanescentWaveAttenuation.[`Figures`](#PhysicsRegion.Figures)Gets the list of associated figures.[`FluidBehavior`](#PhysicsRegion.FluidBehavior)Gets or sets the FluidBehavior.[`Images`](#PhysicsRegion.Images)Gets the list of associated images.[`InternalObject`](#PhysicsRegion.InternalObject)Gets the internal object. For advanced usage only.[`Location`](#PhysicsRegion.Location)Gets or sets the Location.[`PMLElementCoordinateSystem`](#PhysicsRegion.PMLElementCoordinateSystem)Gets or sets the PMLElementCoordinateSystem.[`PMLOptions`](#PhysicsRegion.PMLOptions)Gets or sets the PMLOptions.[`Piezoelectric`](#PhysicsRegion.Piezoelectric)Gets the Piezoelectric.[`Properties`](#PhysicsRegion.Properties)Gets the list of properties for this object.[`ReferencePressure`](#PhysicsRegion.ReferencePressure)Gets or sets the ReferencePressure.[`ReferenceStaticPressure`](#PhysicsRegion.ReferenceStaticPressure)Gets or sets the ReferenceStaticPressure.[`ReflectionCoefficient`](#PhysicsRegion.ReflectionCoefficient)Gets or sets the ReflectionCoefficient.[`ReflectionCoefficientInNegativeXDirection`](#PhysicsRegion.ReflectionCoefficientInNegativeXDirection)Gets or sets the ReflectionCoefficientInNegativeXDirection.[`ReflectionCoefficientInNegativeYDirection`](#PhysicsRegion.ReflectionCoefficientInNegativeYDirection)Gets or sets the ReflectionCoefficientInNegativeYDirection.[`ReflectionCoefficientInNegativeZDirection`](#PhysicsRegion.ReflectionCoefficientInNegativeZDirection)Gets or sets the ReflectionCoefficientInNegativeZDirection.[`ReflectionCoefficientInPositiveXDirection`](#PhysicsRegion.ReflectionCoefficientInPositiveXDirection)Gets or sets the ReflectionCoefficientInPositiveXDirection.[`ReflectionCoefficientInPositiveYDirection`](#PhysicsRegion.ReflectionCoefficientInPositiveYDirection)Gets or sets the ReflectionCoefficientInPositiveYDirection.[`ReflectionCoefficientInPositiveZDirection`](#PhysicsRegion.ReflectionCoefficientInPositiveZDirection)Gets or sets the ReflectionCoefficientInPositiveZDirection.[`ReflectionCoefficientsType`](#PhysicsRegion.ReflectionCoefficientsType)Gets or sets the ReflectionCoefficientsType.[`Structural`](#PhysicsRegion.Structural)Gets or sets the Structural.[`Suppressed`](#PhysicsRegion.Suppressed)Gets or sets the Suppressed.[`Thermal`](#PhysicsRegion.Thermal)Gets or sets the Thermal.[`ThermalStrain`](#PhysicsRegion.ThermalStrain)Gets or sets the ThermalStrain.[`ThermoelasticDamping`](#PhysicsRegion.ThermoelasticDamping)Gets or sets the ThermoelasticDamping.[`VisibleProperties`](#PhysicsRegion.VisibleProperties)Gets the list of properties that are visible for this object.<a id="property-detail"></a>

## Property detail

<a id="PhysicsRegion.Acoustics"></a>

### *property* PhysicsRegion.Acoustics *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Acoustics.

<a id="PhysicsRegion.ArtificiallyMatchedLayers"></a>

### *property* PhysicsRegion.ArtificiallyMatchedLayers *: [Ansys.Mechanical.DataModel.Enums.ArtificiallyMatchedLayers](../../../Mechanical/DataModel/Enums/ArtificiallyMatchedLayers.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ArtificiallyMatchedLayers) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ArtificiallyMatchedLayers.

<a id="PhysicsRegion.Children"></a>

### *property* PhysicsRegion.Children *: List\[Ansys.Mechanical.DataModel.Interfaces.IDataModelObject\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of children.

<a id="PhysicsRegion.Comments"></a>

### *property* PhysicsRegion.Comments *: Iterable\[[Ansys.ACT.Automation.Mechanical.Comment](Comment.md#ansys.mechanical.stubs.v251.Ansys.ACT.Automation.Mechanical.Comment)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated comments.

<a id="PhysicsRegion.DataModelObjectCategory"></a>

### *property* PhysicsRegion.DataModelObjectCategory *: [Ansys.Mechanical.DataModel.Enums.DataModelObjectCategory](../../../Mechanical/DataModel/Enums/DataModelObjectCategory.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.DataModelObjectCategory) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the current DataModelObject’s category.

<a id="PhysicsRegion.Electric"></a>

### *property* PhysicsRegion.Electric *: [Ansys.Mechanical.DataModel.Enums.ElectricType](../../../Mechanical/DataModel/Enums/ElectricType.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ElectricType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Electric.

<a id="PhysicsRegion.ElectrostaticForce"></a>

### *property* PhysicsRegion.ElectrostaticForce *: [Ansys.Mechanical.DataModel.Enums.ElectrostaticForce](../../../Mechanical/DataModel/Enums/ElectrostaticForce.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ElectrostaticForce) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ElectrostaticForce.

<a id="PhysicsRegion.ElementMorphing"></a>

### *property* PhysicsRegion.ElementMorphing *: [Ansys.Mechanical.DataModel.Enums.ElementMorphingType](../../../Mechanical/DataModel/Enums/ElementMorphingType.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ElementMorphingType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ElementMorphing.

<a id="PhysicsRegion.EvanescentWaveAttenuation"></a>

### *property* PhysicsRegion.EvanescentWaveAttenuation *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the EvanescentWaveAttenuation.

<a id="PhysicsRegion.Figures"></a>

### *property* PhysicsRegion.Figures *: Iterable\[[Ansys.ACT.Automation.Mechanical.Figure](Figure.md#ansys.mechanical.stubs.v251.Ansys.ACT.Automation.Mechanical.Figure)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated figures.

<a id="PhysicsRegion.FluidBehavior"></a>

### *property* PhysicsRegion.FluidBehavior *: [Ansys.Mechanical.DataModel.Enums.FluidBehavior](../../../Mechanical/DataModel/Enums/FluidBehavior.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.FluidBehavior) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the FluidBehavior.

<a id="PhysicsRegion.Images"></a>

### *property* PhysicsRegion.Images *: Iterable\[[Ansys.ACT.Automation.Mechanical.Image](Image.md#ansys.mechanical.stubs.v251.Ansys.ACT.Automation.Mechanical.Image)\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of associated images.

<a id="PhysicsRegion.InternalObject"></a>

### *property* PhysicsRegion.InternalObject *: Ansys.Common.Interop.DSObjectsAuto.IDSPhysicsRegionAuto | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the internal object. For advanced usage only.

<a id="PhysicsRegion.Location"></a>

### *property* PhysicsRegion.Location *: Ansys.ACT.Interfaces.Common.ISelectionInfo | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Location.

<a id="PhysicsRegion.PMLElementCoordinateSystem"></a>

### *property* PhysicsRegion.PMLElementCoordinateSystem *: [Ansys.ACT.Automation.Mechanical.CoordinateSystem](CoordinateSystem.md#ansys.mechanical.stubs.v251.Ansys.ACT.Automation.Mechanical.CoordinateSystem) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the PMLElementCoordinateSystem.

<a id="PhysicsRegion.PMLOptions"></a>

### *property* PhysicsRegion.PMLOptions *: [Ansys.Mechanical.DataModel.Enums.PMLOptions](../../../Mechanical/DataModel/Enums/PMLOptions.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.PMLOptions) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the PMLOptions.

<a id="PhysicsRegion.Piezoelectric"></a>

### *property* PhysicsRegion.Piezoelectric *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the Piezoelectric.

<a id="PhysicsRegion.Properties"></a>

### *property* PhysicsRegion.Properties *: [tuple](https://docs.python.org/3/library/stdtypes.html#tuple)\[Ansys.ACT.Automation.Mechanical.Property\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of properties for this object.

<a id="PhysicsRegion.ReferencePressure"></a>

### *property* PhysicsRegion.ReferencePressure *: Ansys.Core.Units.Quantity | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReferencePressure.

<a id="PhysicsRegion.ReferenceStaticPressure"></a>

### *property* PhysicsRegion.ReferenceStaticPressure *: Ansys.Core.Units.Quantity | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReferenceStaticPressure.

<a id="PhysicsRegion.ReflectionCoefficient"></a>

### *property* PhysicsRegion.ReflectionCoefficient *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficient.

<a id="PhysicsRegion.ReflectionCoefficientInNegativeXDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInNegativeXDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInNegativeXDirection.

<a id="PhysicsRegion.ReflectionCoefficientInNegativeYDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInNegativeYDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInNegativeYDirection.

<a id="PhysicsRegion.ReflectionCoefficientInNegativeZDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInNegativeZDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInNegativeZDirection.

<a id="PhysicsRegion.ReflectionCoefficientInPositiveXDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInPositiveXDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInPositiveXDirection.

<a id="PhysicsRegion.ReflectionCoefficientInPositiveYDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInPositiveYDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInPositiveYDirection.

<a id="PhysicsRegion.ReflectionCoefficientInPositiveZDirection"></a>

### *property* PhysicsRegion.ReflectionCoefficientInPositiveZDirection *: [float](https://docs.python.org/3/library/functions.html#float) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientInPositiveZDirection.

<a id="PhysicsRegion.ReflectionCoefficientsType"></a>

### *property* PhysicsRegion.ReflectionCoefficientsType *: [Ansys.Mechanical.DataModel.Enums.ReflectionCoefficientsType](../../../Mechanical/DataModel/Enums/ReflectionCoefficientsType.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ReflectionCoefficientsType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ReflectionCoefficientsType.

<a id="PhysicsRegion.Structural"></a>

### *property* PhysicsRegion.Structural *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Structural.

<a id="PhysicsRegion.Suppressed"></a>

### *property* PhysicsRegion.Suppressed *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Suppressed.

<a id="PhysicsRegion.Thermal"></a>

### *property* PhysicsRegion.Thermal *: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the Thermal.

<a id="PhysicsRegion.ThermalStrain"></a>

### *property* PhysicsRegion.ThermalStrain *: [Ansys.Mechanical.DataModel.Enums.ThermalStrainType](../../../Mechanical/DataModel/Enums/ThermalStrainType.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ThermalStrainType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ThermalStrain.

<a id="PhysicsRegion.ThermoelasticDamping"></a>

### *property* PhysicsRegion.ThermoelasticDamping *: [Ansys.Mechanical.DataModel.Enums.ThermoelasticDampingType](../../../Mechanical/DataModel/Enums/ThermoelasticDampingType.md#ansys.mechanical.stubs.v251.Ansys.Mechanical.DataModel.Enums.ThermoelasticDampingType) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the ThermoelasticDamping.

<a id="PhysicsRegion.VisibleProperties"></a>

### *property* PhysicsRegion.VisibleProperties *: [tuple](https://docs.python.org/3/library/stdtypes.html#tuple)\[Ansys.ACT.Automation.Mechanical.Property\] | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the list of properties that are visible for this object.

<a id="method-detail"></a>

## Method detail

<a id="PhysicsRegion.Activate"></a>

### PhysicsRegion.Activate()

Activate the current object.

<a id="PhysicsRegion.AddComment"></a>

### PhysicsRegion.AddComment()

Creates a new child Comment.

<a id="PhysicsRegion.AddFigure"></a>

### PhysicsRegion.AddFigure()

Creates a new child Figure.

<a id="PhysicsRegion.AddImage"></a>

### PhysicsRegion.AddImage(filePath: [str](https://docs.python.org/3/library/stdtypes.html#str))

```text
Creates a new child Image.
If a filePath is provided, the image will be loaded from that file,
if not, the image will be a screen capture of the Geometry window.

```

<a id="PhysicsRegion.CopyTo"></a>

### PhysicsRegion.CopyTo(other: Ansys.ACT.Automation.Mechanical.DataModelObject)

Copies all visible properties from this object to another.

<a id="PhysicsRegion.CreateParameter"></a>

### PhysicsRegion.CreateParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Creates a new parameter for a Property.

<a id="PhysicsRegion.Delete"></a>

### PhysicsRegion.Delete()

Run the Delete action.

<a id="PhysicsRegion.Duplicate"></a>

### PhysicsRegion.Duplicate()

Creates a copy of the current DataModelObject.

<a id="PhysicsRegion.GetChildren"></a>

### PhysicsRegion.GetChildren(recurses: [bool](https://docs.python.org/3/library/functions.html#bool), children: List\[ChildrenType\])

Gets the list of children, filtered by type.

<a id="PhysicsRegion.GetParameter"></a>

### PhysicsRegion.GetParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Gets the parameter corresponding to the given property.

<a id="PhysicsRegion.GroupAllSimilarChildren"></a>

### PhysicsRegion.GroupAllSimilarChildren()

Run the GroupAllSimilarChildren action.

<a id="PhysicsRegion.GroupSimilarObjects"></a>

### PhysicsRegion.GroupSimilarObjects()

Run the GroupSimilarObjects action.

<a id="PhysicsRegion.PropertyByAPIName"></a>

### PhysicsRegion.PropertyByAPIName(name: [str](https://docs.python.org/3/library/stdtypes.html#str))

```text
Get a property by its API name.
If multiple properties have the same API Name, only the first property with that name will be returned.

```

<a id="PhysicsRegion.PropertyByName"></a>

### PhysicsRegion.PropertyByName(name: [str](https://docs.python.org/3/library/stdtypes.html#str))

Get a property by its unique name.

<a id="PhysicsRegion.RemoveParameter"></a>

### PhysicsRegion.RemoveParameter(propName: [str](https://docs.python.org/3/library/stdtypes.html#str))

Removes the parameter from the parameter set corresponding to the given property.

<a id="PhysicsRegion.RenameBasedOnDefinition"></a>

### PhysicsRegion.RenameBasedOnDefinition()

Run the RenameBasedOnDefinition action.

<a id="PhysicsRegion.SelectInvalidBodiesOnPhysicsRegion"></a>

### PhysicsRegion.SelectInvalidBodiesOnPhysicsRegion()

Run the SelectInvalidBodiesOnPhysicsRegion action to select bodies that are not valid.