A comparison of gas velocity measurements in a full-scale enclosure fire

被引：29
|
作者：
Bryant, Rodney A. [1 ]
机构：
[1] Natl Inst Stand & Technol, Bldg & Fire Res Lab, Gaithersburg, MD 20899 USA
来源：
FIRE SAFETY JOURNAL | 2009年 / 44卷 / 05期
关键词：
Flow measurement; Fire-induced flow; Particle image velocimetry; Bi-directional probe;
D O I：
10.1016/j.firesaf.2009.03.010
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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 bidirectional 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 floor and the flow interface. The comparison revealed that a measurement bias exists in the bidirectional probe technique. Estimates of the relative magnitude of the bias were inferred from the results. Published by Elsevier Ltd.
引用
收藏
页码：793 / 800
页数：8
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