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 # `FluidPenetrationPressure`

 Last update: 09.03.2026 

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

#### *class* Ansys.ACT.Automation.Mechanical.BoundaryConditions.FluidPenetrationPressure

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

A class for fluid penetration pressure object in Mechanical. This load object is used to simulate surrounding fluid or air penetrating into the contact interface. : Users can apply this load to flexible-to-flexible or rigid-to-flexible contact pairs. This load object is available for static structural analysis.

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

## Overview

### Methods

NameDescription[`Activate`](#FluidPenetrationPressure.Activate)Activate the current object.[`AddComment`](#FluidPenetrationPressure.AddComment)Creates a new child Comment.[`AddFigure`](#FluidPenetrationPressure.AddFigure)Creates a new child Figure.[`AddImage`](#FluidPenetrationPressure.AddImage)Creates a new child Image.[`CopyTo`](#FluidPenetrationPressure.CopyTo)Copies all visible properties from this object to another.[`CreateParameter`](#FluidPenetrationPressure.CreateParameter)Creates a new parameter for a Property.[`Delete`](#FluidPenetrationPressure.Delete)Run the Delete action.[`Duplicate`](#FluidPenetrationPressure.Duplicate)Creates a copy of the current DataModelObject.[`GetActivateAtLoadStep`](#FluidPenetrationPressure.GetActivateAtLoadStep)Gets whether the fluid penetration pressure is active at the specified load step.[`GetChildren`](#FluidPenetrationPressure.GetChildren)Gets the list of children, filtered by type.[`GetParameter`](#FluidPenetrationPressure.GetParameter)Gets the parameter corresponding to the given property.[`GroupAllSimilarChildren`](#FluidPenetrationPressure.GroupAllSimilarChildren)Run the GroupAllSimilarChildren action.[`GroupSimilarObjects`](#FluidPenetrationPressure.GroupSimilarObjects)Run the GroupSimilarObjects action.[`PromoteToNamedSelection`](#FluidPenetrationPressure.PromoteToNamedSelection)Run the PromoteToNamedSelection action.[`PropertyByAPIName`](#FluidPenetrationPressure.PropertyByAPIName)Get a property by its API name.[`PropertyByName`](#FluidPenetrationPressure.PropertyByName)Get a property by its unique name.[`RemoveParameter`](#FluidPenetrationPressure.RemoveParameter)Removes the parameter from the parameter set corresponding to the given property.[`SetActivateAtLoadStep`](#FluidPenetrationPressure.SetActivateAtLoadStep)Sets whether the fluid penetration pressure is active at the specified load step.### Properties

NameDescription[`Children`](#FluidPenetrationPressure.Children)Gets the list of children.[`Comments`](#FluidPenetrationPressure.Comments)Gets the list of associated comments.[`ContactRegionSelection`](#FluidPenetrationPressure.ContactRegionSelection)Gets or sets contact region.[`DataModelObjectCategory`](#FluidPenetrationPressure.DataModelObjectCategory)Gets the current DataModelObject’s category.[`Figures`](#FluidPenetrationPressure.Figures)Gets the list of associated figures.[`GraphControlsXAxis`](#FluidPenetrationPressure.GraphControlsXAxis)Gets or sets the GraphControlsXAxis.[`GraphDisplaySelection`](#FluidPenetrationPressure.GraphDisplaySelection)Gets or sets the GraphDisplaySelection which determines which variable to display in graph, Pressure or Criterion.[`Images`](#FluidPenetrationPressure.Images)Gets the list of associated images.[`IndependentVariable`](#FluidPenetrationPressure.IndependentVariable)Gets or set the IndependentVariable.[`InternalObject`](#FluidPenetrationPressure.InternalObject)Gets the internal object. For advanced usage only.[`Magnitude`](#FluidPenetrationPressure.Magnitude)Gets the Magnitude.[`NumberOfSegments`](#FluidPenetrationPressure.NumberOfSegments)Gets or sets the NumberofSegments.[`PenetrationCriterion`](#FluidPenetrationPressure.PenetrationCriterion)Gets the PenetrationCriterion.[`PenetrationCriterionDefinedBy`](#FluidPenetrationPressure.PenetrationCriterionDefinedBy)Gets or sets the PenetrationCriterionDefinedBy which determines whether user define the criterion.[`PenetrationPathType`](#FluidPenetrationPressure.PenetrationPathType)Gets or sets the PenetrationPathType which determines whether path is history dependent or history independent.[`Properties`](#FluidPenetrationPressure.Properties)Gets the list of properties for this object.[`ReadOnly`](#FluidPenetrationPressure.ReadOnly)Gets or sets the ReadOnly.[`SharedRefBody`](#FluidPenetrationPressure.SharedRefBody)Gets or sets the SharedRefBody.[`StartPointLocation`](#FluidPenetrationPressure.StartPointLocation)Gets or sets the Start Point Location.[`StartPointScopingType`](#FluidPenetrationPressure.StartPointScopingType)Gets or set the StartPointScopingType which determines scoping method for stating point.[`Suppressed`](#FluidPenetrationPressure.Suppressed)Gets or sets the Suppressed.[`UpdatePressureType`](#FluidPenetrationPressure.UpdatePressureType)Gets or sets the UpdatePressureType which determines when to update fluid pressure, each iteration or each substep.[`VisibleProperties`](#FluidPenetrationPressure.VisibleProperties)Gets the list of properties that are visible for this object.[`XYZFunctionCoordinateSystem`](#FluidPenetrationPressure.XYZFunctionCoordinateSystem)Gets or sets the XYZFunctionCoordinateSystem.<a id="property-detail"></a>

## Property detail

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

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

Gets the list of children.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.ContactRegionSelection"></a>

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

Gets or sets contact region.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.Figures"></a>

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.GraphControlsXAxis"></a>

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

Gets or sets the GraphControlsXAxis.

<a id="FluidPenetrationPressure.GraphDisplaySelection"></a>

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

Gets or sets the GraphDisplaySelection which determines which variable to display in graph, Pressure or Criterion.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.IndependentVariable"></a>

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

Gets or set the IndependentVariable.

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

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

Gets the internal object. For advanced usage only.

<a id="FluidPenetrationPressure.Magnitude"></a>

### *property* FluidPenetrationPressure.Magnitude *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v251.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the Magnitude.

<a id="FluidPenetrationPressure.NumberOfSegments"></a>

### *property* FluidPenetrationPressure.NumberOfSegments *: [int](https://docs.python.org/3/library/functions.html#int) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets or sets the NumberofSegments.

<a id="FluidPenetrationPressure.PenetrationCriterion"></a>

### *property* FluidPenetrationPressure.PenetrationCriterion *: [Ansys.ACT.Mechanical.Fields.Field](../../../Mechanical/Fields/Field.md#ansys.mechanical.stubs.v251.Ansys.ACT.Mechanical.Fields.Field) | [None](https://docs.python.org/3/library/constants.html#None)*

Gets the PenetrationCriterion.

<a id="FluidPenetrationPressure.PenetrationCriterionDefinedBy"></a>

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

Gets or sets the PenetrationCriterionDefinedBy which determines whether user define the criterion.

<a id="FluidPenetrationPressure.PenetrationPathType"></a>

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

Gets or sets the PenetrationPathType which determines whether path is history dependent or history independent.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.ReadOnly"></a>

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

Gets or sets the ReadOnly.

<a id="FluidPenetrationPressure.SharedRefBody"></a>

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

Gets or sets the SharedRefBody.

<a id="FluidPenetrationPressure.StartPointLocation"></a>

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

Gets or sets the Start Point Location.

<a id="FluidPenetrationPressure.StartPointScopingType"></a>

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

Gets or set the StartPointScopingType which determines scoping method for stating point.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.UpdatePressureType"></a>

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

Gets or sets the UpdatePressureType which determines when to update fluid pressure, each iteration or each substep.

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

### *property* FluidPenetrationPressure.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="FluidPenetrationPressure.XYZFunctionCoordinateSystem"></a>

### *property* FluidPenetrationPressure.XYZFunctionCoordinateSystem *: [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 XYZFunctionCoordinateSystem.

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

## Method detail

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

### FluidPenetrationPressure.Activate()

Activate the current object.

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

### FluidPenetrationPressure.AddComment()

Creates a new child Comment.

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

### FluidPenetrationPressure.AddFigure()

Creates a new child Figure.

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

### FluidPenetrationPressure.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="FluidPenetrationPressure.CopyTo"></a>

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

Copies all visible properties from this object to another.

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

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

Creates a new parameter for a Property.

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

### FluidPenetrationPressure.Delete()

Run the Delete action.

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

### FluidPenetrationPressure.Duplicate()

Creates a copy of the current DataModelObject.

<a id="FluidPenetrationPressure.GetActivateAtLoadStep"></a>

### FluidPenetrationPressure.GetActivateAtLoadStep(stepNumber: [int](https://docs.python.org/3/library/functions.html#int))

Gets whether the fluid penetration pressure is active at the specified load step.

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

### FluidPenetrationPressure.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="FluidPenetrationPressure.GetParameter"></a>

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

Gets the parameter corresponding to the given property.

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

### FluidPenetrationPressure.GroupAllSimilarChildren()

Run the GroupAllSimilarChildren action.

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

### FluidPenetrationPressure.GroupSimilarObjects()

Run the GroupSimilarObjects action.

<a id="FluidPenetrationPressure.PromoteToNamedSelection"></a>

### FluidPenetrationPressure.PromoteToNamedSelection()

Run the PromoteToNamedSelection action.

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

### FluidPenetrationPressure.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="FluidPenetrationPressure.PropertyByName"></a>

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

Get a property by its unique name.

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

### FluidPenetrationPressure.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="FluidPenetrationPressure.SetActivateAtLoadStep"></a>

### FluidPenetrationPressure.SetActivateAtLoadStep(stepNumber: [int](https://docs.python.org/3/library/functions.html#int), bActive: [bool](https://docs.python.org/3/library/functions.html#bool))

Sets whether the fluid penetration pressure is active at the specified load step.