摘要
火焰结构变化动态过程的联合时频特征分布模型是对火焰自身运动及燃烧过程中能量传递的动态表征,同时也为研究燃烧产物的动态生成过程提供时间序列与脉动频度的联合信息支持,也可应用于对燃烧、火灾发展趋势的预测。本文通过超细水雾对小尺度火焰温度波动影响的联合时频分析,获得水雾作用前后温度波动频率特征。
The model of joint time-frequency distribution characteristics of flame structure in its dynamic devel-
opment procedure dynamically represents the energy transfer in flame propagation and combustion procedure. It
also provides joint information of time sires and fluctuation frequency support for study of dynamic generating
procedure of combustion products. The joint time-frequency characteristic can be applied to forecast combustion
and fire developing tendency. Joint time frequency characteristics of temperature fluctuation in small-scale fire are
discussed in this paper,and the characteristics before and after fine water mist exerting are obtained.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2003年第z2期25-26,共2页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金(50206022)
关键词
火
焰
温度波动
联合时频分析
Flame
Temperature fluctuation
Joint time-frequency analysis
