Overview of a Theory for Simulating Smoke Movement Through Long Vertical Shafts in Zone-Type Fire Models.
Overview of a Theory for Simulating Smoke Movement
Through Long Vertical Shafts in Zone-Type Fire Models.
(164 K)
Cooper, L. Y.
NISTIR 5499; September 1994.
National Institute of Standards and Technology. Annual
Conference on Fire Research: Book of Abstracts.
October 17-20, 1994, Gaithersburg, MD, 93-94 pp, 1994.
Order number: PB95-104964
Keywords:
fire research; smoke movement; zone models; fire models;
compartment fires
Abstract:
A limitation of the two-layer
quasi-steady-buoyant-plumes approach to modeling
compartment fires. The modeling strategy which uses the
concepts of one-to-two uniform layers per room,
room-to-room mass exchanges by vent flows, and
layer-to-layer mass exchange by quasi-steady buoyant
plumes has proven to be very robust. However, there are
important practical room configurations and associated
fire scenarios where these basic concepts are
inadequate. If the basic concepts are not applicable to
a particular room configuration, then, to the extent
that room plays a significant role in the spread of fire
and smoke throughout the facility (e.g., the room is the
connecting flow path between the room of fire origin and
a threatened space), the inadequacy of the simulation in
that room can render inadequate the entire simulation.
