> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Virtual Boundary

> An object that defines the location of a boundary condition on a Domain.

### Properties

| Name | Type                                                                      |
| ---- | ------------------------------------------------------------------------- |
| Body | [Implicit Body](../../block-documentation/types/implicit-body)            |
| List | [Virtual Boundary List](../../block-documentation/types/virtual-boundary) |

### Block Reference

| Block Name                                                                                                  | Location                 |
| ----------------------------------------------------------------------------------------------------------- | ------------------------ |
| [Virtual Boundary by Body](../../block-documentation/blocks/structures/utilities/virtual-boundary-by-body)  | Structures/Utilities     |
| [Virtual Boundary by Body](../../block-documentation/blocks/fluids-beta/utilities/virtual-boundary-by-body) | Fluids \[Beta]/Utilities |