Using fields to define boundary conditions

There are two categories of boundary conditions with regard to fields:

• Boundary conditions where you specify the magnitude and spatial distribution with a single field.

• Boundary conditions where you specify the magnitude and spatial distribution with separate fields.

Specifying magnitude and spatial distribution in a single field

The field can have either a spatial independent domain or an independent domain that is a combination of spatial variables and one non-spatial variable. The valid non-spatial variables are time, frequency, and temperature.

Examples of boundary conditions for which you can specify magnitude and spatial distribution in a single field include Pressure and Enforced Displacement Constraint. Depending on your selection in the Type group of the boundary condition dialog box, you specify these fields in either the Magnitude or Components group of the boundary condition dialog box.

Specifying magnitude and spatial distribution in separate fields

You use one field with a non-spatial independent domain of time, frequency, or temperature to specify the magnitude, and another field with a spatial independent domain to specify the spatial distribution.

Examples of boundary conditions for which you specify magnitude and spatial distribution with separate fields include Force and Moment. You specify the field that represents the magnitude of the boundary condition in the Magnitude group of the boundary condition dialog box. You specify the field that represents the spatial distribution of the boundary condition in the Distribution Field group of the boundary condition dialog box.

Specifying a boundary condition with separate fields for the magnitude and spatial distribution requires special considerations. For more information, see Special considerations for specifying magnitude and distribution in separate fields.

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Using fields to define boundary conditions, Simcenter 3D 2021.1 Series

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