Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Buoyancy Driven Flow as the Forcing Function of Smoke Transport Models.



Walter W. Jones, X E. Bodart


Flow at vents is the major driving force in smoke transport models. The precision with which we can calculate these flows determines to a great extent how accurately we can model buoyant flow and the inherent speed of the models. This report describes some of the problems encountered in calculating these flows, and gives a general algorithm for their calculation.
NIST Interagency/Internal Report (NISTIR) -


vent flow, smoke transport model, fire modeling, differential equation


Jones, W. and Bodart, X. (1986), Buoyancy Driven Flow as the Forcing Function of Smoke Transport Models., NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 18, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 1, 1986, Updated February 19, 2017