# Boundary Conditions: Radiating Boundary

## Function:

Defines a boundary that absorbs the radiating pressure flux (infinite boundary). This boundary also takes care of evaluating the far-field pressure.

## Application:

Line (circular), Surface (spherical).

## Description:

The region of application must have a constant radius.

## Remarks:

The integration is automatically set to Dipolar for 2D problems and Monopolar for 3D problems.

## Illustration:

## ATILA Equivalent:

- A RADIATING command is added with the DIPOLAR or MONOPOLAR option, depending on whether the problem is 2D or 3D.
- A GEOMETRY entry is created with the radius of the radiating boundary (automatically computed from the geometry).
- A section of radiating elements (LINE03R, TRIA06R, QUAD08R) is automatically created. The orientation of these elements is taken care of by the interface and is independent from the orientation that shows up in GiD.

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