Fluid Domains

Fluid Domains

A fluid domain is a finite volume consisting of one or more fluid regions. The fluid regions (which you bound using parts, exterior geometries, and openings) are the volumes in which the fluid flows. You can define different types of boundaries to help you set up an internal or external flow simulation.

A flow simulation has only one fluid domain, as shown in the example below.



Each of the fluid domain's components is explained in more detail in the following sections:

Number Component Description
Parts Parts that define the boundaries of the fluid domain, or parts themselves that represent the fluid domain.
Exterior Boundaries Auxiliary geometry that define a region's boundary.
Regions Contiguous volumes within which a fluid flows. You can define multiple regions within the fluid domain.
Openings Edges that bound a surface that represents a boundary on a region, typically an inlet or outlet for a fluid.
— Surface Selections Surfaces that define a region's boundary.

 

See Also
Surface Selections
Defining a Fluid Domain