Measurement of the Flow Field of Fire Whirl
Measurement of the Flow Field of Fire Whirl
复制标题
火旋流流场的测量
DOI：
10.1007/s10694-015-0511-0
复制
发表时间：
2016
期刊：
影响因子：
3.4
通讯作者：
er
中科院分区：
文献类型：
--
作者：
Wang Pengfei;Liu Naian;Hartl Katherine;Smits Alex;er
In this work, a small-scale fire whirl with pool diameter of 5 cm was produced by a fixed-frame type facility with two split cylinders, and the tangential, axial and radial velocity profiles in the central vertical plane of the fire whirl at different gap sizes (2.54 cm, 3.81 cm, 5.08 cm, 6.35 cm, 7.62 cm) of the two split cylinders were measured using stereo particle image velocimetry. A correction method for the effect of flame wander was developed to obtain velocity profiles corresponding to the characteristics of the instantaneous whirl. The magnitudes of the corrected radial velocity are zero to within experimental error. The whirl consists of an inner vortex core and an outer free vortex and the tangential velocity fits well with the model of a Burgers vortex. The profile of axial velocity follows a Gaussian distribution and the maximum axial velocity appears at the flame center. Moreover, at the vortex core radius, the axial velocity is 0.3 times the maximum axial velocity in the same level.
登录
查看更多内容
DOI：
10.3801/iaffs.fss.10-681
发表时间：
2011
期刊：
Fire Safety Science
影响因子：
--
作者：
K. Zhou;Naian Liu;K. Satoh
通讯作者：
K. Zhou;Naian Liu;K. Satoh
DOI：
--
发表时间：
1971
期刊：
--
影响因子：
--
作者：
D. Haines;Gerald H. Updike
通讯作者：
D. Haines;Gerald H. Updike
DOI：
10.1016/s0082-0784(67)80172-3
发表时间：
1967
期刊：
--
影响因子：
--
作者：
H. Emmons;Shuh-Jing Ying
通讯作者：
H. Emmons;Shuh-Jing Ying
影响因子：
0.8
作者：
D. Akhmetov;N. Gavrilov;V. Nikulin
通讯作者：
D. Akhmetov;N. Gavrilov;V. Nikulin
影响因子：
4.4
作者：
K. Chuah;K. Kuwana;Kozo Saito
通讯作者：
K. Chuah;K. Kuwana;Kozo Saito