Distributed Detection for Tomographic Measurements of Component Concentrations in Fire Generated Plumes.
Distributed Detection for Tomographic Measurements of
Component Concentrations in Fire Generated Plumes.
(162 K)
Baum, R. T.; McGrattan, K. B.; Nyden, M. R.
NISTIR 5904; October 1996.
National Institute of Standards and Technology. Annual
Conference on Fire Research: Book of Abstracts.
October 28-31, 1996, Gaithersburg, MD, 125-126 pp, 1996.
Available from:
National Technical Information Service
(NTIS), Technology Administration, U.S. Department of
Commerce, Springfield, VA 22161.
Telephone:
1-800-553-6847 or 703-605-6000;
Fax: 703-605-6900.
Website: http://www.ntis.gov
Order number: PB97-153514
Keywords:
fire research; fire science; fire plumes; fire models;
flow fields; turbulent flow; validation
Abstract:
One of the major goals of fire research is to develop
the capability to make realistic assessments of fire
impact and risk by utilizing models. Currently the
large scale fire/plume models may not be validated and
hence calculations which may have a large
economic/safety impact may be considered suspect. As a
consequence, these models are under utilized. In order
to increase the level of confidence placed in these
computational models to an acceptable level a rigorous
experimental tomographic validation technique has been
under development at BFRL/NIST. In the pursuit, we have
analyzed data from both laboratory and computer
generated plumes in order to determine the number of
line-of-sight measurements, the detector topology, and
the temporal resolution needed to obtain accurate
tomographic reconstructions of the component
concentrations in asymmetric turbulent flow fields.
