Bryant, R.
(2009),
A Comparison of Gas Velocity Measurement Techniques in the Doorway of a Full-Scale Enclosure Fire, Fire Safety Journal, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=900156
(Accessed October 13, 2025)
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A Comparison of Gas Velocity Measurement Techniques in the Doorway of a Full-Scale Enclosure Fire
Published
Author(s)
Abstract
Gas velocity measurements were conducted in the doorway of an enclosure containing a natural gas fire. Two independent measurement techniques, Stereoscopic Particle Image Velocimetry (SPIV) and bi-directional impact-pressure probes, were utilized for comparison - the first such comparison for a fire-induced flow in a full-scale structural fire. Gas velocities inferred from the bi-directional probe measurements were consistently greater than SPIV measurements in a region of the flow between the door sill and the flow interface. The comparison reveals that a measurement bias exists in the bi-directional probe technique. Estimates of the bias can be inferred from the results.Citation
Fire Safety Journal
Volume
44
Issue
5
Pub Type
Journals
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Keywords
Flow measurement, fire-induced flow, particle image velocimetry, bi-directional probe
Citation
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Created July 1, 2009, Updated February 19, 2017