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Gravity-Current Transport in Building Fires.

pdf icon Gravity-Current Transport in Building Fires. (428 K)
Baum, H. R.; Cassel, K. W.; McGrattan, K. B.; Rehm, R. G.

National Institute of Standards and Technology (NIST) and Society of Fire Protection Engineers (SFPE). International Conference on Fire Research and Engineering (ICFRE). Proceedings. September 10-15, 1995, Orlando, FL, SFPE, Boston, MA, Lund, D. P.; Angell, E. A., Editor(s)(s), 27-32 pp, 1995.


fire research; building fires; gravity current; heat transfer; Navier-Stokes equations; numerical simulation; smoke transport; transients


Gravity currents generated by smoke movement in corridors are studied by numerically integrating the two dimensional Navier Stokes equations. High resolution solutions to these equations in the Boussinesq limit are compared with salt water experiments to demonstrate the validity of the model. Then the effects of heat transfer are included and its consequences for smoke and hot gas transport in corridors is assessed. Sample numerical results are presented to illustrate these phenomena.