基于数值模拟的大空间建筑火灾温度特性研究

The Feature of Temperature in Large Space Building Fire Research Based on Numerical Simulation
Astract：With the development of the building technology, the large space building has been widely used in the civil construction because of its agility of space arrangement. However, there is not any current design specifications of firefighting to guide architects how they should design the buildings of this type. This research is to simulate the fire disaster occurred in the large space buildings by FDS. Focus on how height and the power of the fire will affect the temperature distribution along the height direction. When some general laws were obtained, this research will give some suggestions on designing of firefighting in buildings of this type.
Key Words:  Large Space；FDS； Temperature Field；Height；The Power of the Fire
目 录
1绪论    1 源￥自%六^^维*论-文+网=www.lwfree.cn
1.1 课题研究背景和意义    1
1.2 国内外研究现状    2
1.3 本文的研究内容和方法    4
2 大空间火灾分析的理论基础    5
2.1 火灾动力学基础    5
2.1.1 火灾阶段理论    5
2.1.2室内火灾及影响因素    6
2.2 FDS数值模拟理论及方法    8
2.2.1 区域模型和双区域模型    8
2.2.2场模型    8
2.2.3 FDS    9
3 大空间火灾数值模拟实验    11
3.1 模型的建立    11
3.2 实验方案及参数设计    11
3.2.1 房间的几何条件    12
3.2.2 房间的开口位置和尺寸    12
3.2.3 房间边界的材料性质    12
3.2.4 可燃物（特指火源）    12
3.3 火灾场景设计    13
4 大空间火灾温度场特性模拟结果分析    14
4.1 基础模型    14
4.2 顶棚高度对大空间火灾温度场分布的影响研究    16
4.3火源功率对大空间火灾温度场分布的影响研究    31
4.4火灾不同阶段的温度曲线分析    33
5 结论和展望    37

1绪论
1.1 课题研究背景和意义

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