自由表面蒸发燃烧危害特性研究

Characteristic research for evaporation combustion of free surface

介绍自由表面蒸发燃烧的定义、分类。进行中尺度火的实验,研究火焰形状结构、温度分布、热辐射特性,分析不同条件和尺度规模时自由表面火的温度分布特性。提出大中型自由表面火的形状模型及其热辐射模型,给出火焰体模型的两区域辐射计算方法。根据实验现象结合他人的研究结果进行讨论,为模型选择、条件假定提供参考。

The free surface evaporation combustion is defined and classified.Experiments of medium scale were carried out in order to study the flame shape,temperature distribution and thermal radiation character,and analyzed the temperature distribution concretely in different condition and scale flame.The shape model and thermal radiation model for large and medium free surface combustion were put forward,and the calculation of fire solid model on two zones radiation models was introduced.Based on the experiment and the results of other researchers,a discussion was represented to provide references for models selection and conditions assuming.