Establishes the physical model and mathematical model of fire smoke diffusion in underground railway. Simulates the temperature field and concentration distribution of fire smoke using CFD method.
建立了地铁火灾中烟气运动的物理模型和数学模型,采用CFD方法模拟了地铁火灾时的温度场和烟气浓度分布。
Temperature field measurement system used in fire suppression test should have two necessary abilities: big measurement range and sensitive response.
温度场测量系统用于封闭空间消防灭火实验需满足两个条件:测温量程大,系统响应灵敏。
The fuzzy assess of the fire field temperature after fire.
火灾后火场温度的模糊评定。
The experiment includes the research of the outfire effect of water mist system, temperature sampling-and-treating of the fire field during the burning and extinguishing is also completed.
通过实验研究了细水雾灭火系统的灭火效果,并进行了燃烧、扑灭过程的火场温度采集与处理。
Base on the three-dimensional heat conduction differential equation, the discrete formulation of three-dimensional unsteady temperature field under fire is established by the volume-control method.
基于三维非稳态导热微分方程,用控制容积法建立了火灾环境下钢筋混凝土三维非稳态温度场的离散格式。
The simplified calculation method of section temperature field for concrete columns with steel tubes under fire disaster conditions was studied for convenient practice.
为方便实用,研究了火灾下钢管混凝土柱截面温度场的简化计算方法。
Tapered beam of a steel portal frame is numerically simulated by the finite element method, and the changes of temperature field under the ISO time-temperature curve and local fire are obtained.
采用有限元法对门式钢刚架结构中的变截面梁进行了数值模拟,分别得到其在ISO标准升温曲线和局部火灾下的温度场变化,考察了升温曲线及火源位置对变截面梁升温的影响。
Experimental study on the physical phenomenon of the fire whirlwind temperature field by infrared thermography, . the height of the fire whirlwind is more greater than the fire whirlwind diameter.
应用热成像方法获得了火旋风特有的物理现象,火焰的大高度直径比;
Comparison between the numerical results of the unsteady temperature field for the reinforced concrete slab in fire and the tested data shows that they are basically identical.
比较之间的非稳态温度场的钢筋混凝土板火灾和测试数据的计算结果表明,它们基本上是相同的。
Comparison between the numerical results of the unsteady temperature field for the reinforced concrete slab in fire and the tested data shows that they are basically identical.
比较之间的非稳态温度场的钢筋混凝土板火灾和测试数据的计算结果表明,它们基本上是相同的。
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