![]() This program can analyze any smoke control system that produces pressure differences with the intent of limiting smoke movement in building fire situations. ASCOS (Analysis of Smoke Control Systems) is a program for steady air flow analysis of smoke control systems.As such, they are largely unsupported due to the age of the software. These models are included largely for reference or historical interest and span several decades of development of computational tools in fire research at NIST. CFAST (Consolidated Model of Fire and Smoke Transport) is a two-zone fire model used to calculate the evolving distribution of smoke, fire gases and temperature throughout compartments of a building during a fire.The software solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow, with an emphasis on smoke and heat transport from fires. FDS (Fire Dynamics Simulator) is a computational fluid dynamics (CFD) model of fire-driven fluid flow.Details of the software, including download, development, and support information are included on the individual web pages for each model. These models are being actively developed and supported by the laboratory. In order to get further information or to obtain one of the programs, click on the appropriate name. The list of programs is divided into two broad categories below: currently-supported software and archival (unsupported) software. ![]() These fire simulation programs were developed or sponsored by the Fire Research Division.
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