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Document ID (ISN)50355
CIS number 88-1669
ISSN - Serial title 0304-3894 - Journal of Hazardous Materials
Year 1987
Convention or series no.
Author(s) Meroney R.N.
Title Validation of fluid modeling techniques for assessing hazards of dense gas cloud dispersion
Bibliographic information July 1987, Vol.15, No.3, p.377-417. Illus. 31 ref.
Abstract Data from 26 dense gas field experiments are compared with physical model simulations. In general the model clouds are very similar in appearance, they spread and travel at correct rates, measured concentrations compare very well, and peak concentrations are often predicted to within a factor of two or better. Model simulations where specific gravity, volume flux ratio and Froude number equality are maintained produce the most successful predictions of field concentrations. When only volume flux ratio and flux Froude number equality are stipulated, peak concentration isopleths are preserved, but the time of arrival and departure of the dense clouds is distorted. Field/fluid model comparisons reveal that lower flammability distances for liquefied natural gas or propane spills are predicted within a standard deviation of 25% with a 90% level of confidence.
Descriptors (primary) vapour clouds; hazard evaluation; experimental determination; disasters; tests on models
Descriptors (secondary) evaluation of technique; comparative study; gas distribution; fluid mechanics
Document type D - Periodical articles
Subject(s) Fire and explosions
Broad subject area(s) Fires, explosions and major hazards
Browse category(ies) Explosions
Risk evaluation