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Citation Format: Full Citation (1F)

Accession Number:
ADA153152
Citation Status:
Active
Citation Classification:
Unclassified
Fields and Groups:
131200 - Safety Engineering
140200 - Test Facilities, Equipment and Methods
Corporate Author:
TRW ELECTRONICS AND DEFENSE SECTOR REDONDO BEACH CA
Unclassified Title:
(U) Laboratory Modeling of Aspects of Large Fires,
Title Classification:
Unclassified
Personal Author(s):
Carrier,G F
Fendell,F E
Fleeter,R D
Gat,N
Cohen,L M
Report Date:
30 Apr 1984
Media Count:
56 Page(s)
Cost:
$9.60
Contract Number:
DNA001-83-C-0228
Report Number(s):
TRW-42504-6001-UT-00
DNA-TR-84-18
SBI-AD-E301 615
Project Number:
G54CMXG
Task Number:
D000
Monitor Acronym:
DNA
SBI
Monitor Series:
TR-84-18
AD-E301 615
Report Classification:
Unclassified
Descriptors:
(U) *FIRES, *FLAME PROPAGATION, *TEST FACILITIES, NUCLEAR WEAPONS, LABORATORIES, WEAPONS EFFECTS, FIRE SAFETY
Identifiers:
(U) Buoyant plume, WU01, WUDH006945, PE62715H
Identifier Classification:
Unclassified
Abstract:
(U) The design, contruction, and use of a laboratory-scale combustion tunnel for simulating aspects of large-scale free-burning fires are described. The facility consists of an enclosed, rectangular-cross section (1.12 m wide x 1.27 m high) test section of about 5.6 m in length, fitted with large sidewall windows for viewing. A long upwind section permits smoothing (by screens and honeycombs) of a forced-convective flow, generated by a fan and adjustable in wind speed (up to a maximum speed of about 20 m/s prior to smoothing). Special provision is made for unconstrained ascent of a strongly buoyant plume, the duct over the test section being about 7 m in height. Also, a translatable test-section ceiling can be used to prevent jet-type spreading into the duct of the impressed flow; that is, the wind arriving at a site (say) half-way along the test section can be made (by ceiling movement) approximately the same as that at the leading edge of the test section with a fully open duct (fully retracted ceiling). Of particular interest here are the rate and structure of wind-aided flame spread streamwise along a uniform matrix of vertically oriented small fuel elements (such as toothpicks or coffee-strirrers), implanted in clay stratum on the test-section floor; this experiment is motivated by flame spread across strewn debris, such as may be anticipated in an urban environment after severe blast damage.
Abstract Classification:
Unclassified
Distribution Limitation(s):
01 - APPROVED FOR PUBLIC RELEASE
Source Code:
413191
Document Location:
DTIC AND NTIS

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