Periodic Boundary Condition dialog box (Flow/ESC/Multiphysics)

Option	Description
Type	Specifies the type of the periodic boundary condition.Rotational PeriodicityLets you simulate a portion (an arc) of a cylindrical fluid domain.Translational PeriodicityReduces the fluid domain by modeling one section of an entire model that can be broken down into identical, periodic, parallel sections.
Name
Name	Lets you specify a name for the simulation object.Description opens an editor that lets you type a description for the constraint.
Destination Folder
Simulation Object Container	Specifies the folder in the Simulation Navigator in which the boundary condition will be stored. The list includes the root container and existing folders that you created using the New Folder command. Examples of a root container include Load Container, Constraint Container, and Simulation Object Container.
Folder Manager	Displays a hierarchical listing of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder.
Master Region
Group Reference	Applies the boundary condition to the selected group. For more information, see Group Reference options.
Select Object	Lets you select a polygon face of one of the periodic boundaries that mate with the 3D flow mesh.Excluded lets you remove individual entities from within your selected object.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Slave Region
Group Reference	Applies the boundary condition to the selected group. For more information, see Group Reference options.
Select Object	Lets you select a polygon face of the other periodic boundary.Excluded lets you remove individual entities from within your selected object.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Pressure Drop
Appears when Type is set to Translational Periodicity.
Pressure Drop	Controls the pressure drop between the master region and slave region.None implies that the pressure is the same on the elements in the master region and slave region.From Master to Slave Faces lets you specify the pressure drop between the master region and the slave region in the Pressure box.
Revolve Axis
Appears when Type is set to Rotational Periodicity.
Revolve Axis	Specifies the axis of rotation from the master region to the slave region. Global Cyclic AnalysisAppears if you defined the cyclic symmetry cylindrical coordinate system in the FEM. Revolves the model around the Z-axis of the cyclic symmetry cylindrical coordinate system. User-DefinedLets you specify the axis of revolution. Use the Specify Vector options to specify the direction of revolution, and use the Specify Point options to specify the location of the axis.

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Periodic Boundary Condition dialog box (Flow/ESC/Multiphysics), Simcenter 3D 2021.1 Series

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