The Smoke Visibility capability computes the distance a lighted sign can be seen from within a smoke-filled environment. The flow computed by Autodesk® CFD and a correlation developed by the United States NRC evaluate this distance based on the resultant air flow, location of the fire, and properties of the fire load.
This information helps architectural designers determine the location and placement of exit signs in enclosed environments. As smoke fills a room, the visibility of signs that point to exits is vital for safe evacuation.
Klote, J., J. Milke, Principles of Smoke Management, 2002