| 大型建筑内部火灾温度场的数值模拟 |
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| 引用本文： | 刘晓平,周德闯,李振华.大型建筑内部火灾温度场的数值模拟[J].火灾科学,2005,14(2):121-126. |
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| 作者姓名： | 刘晓平 周德闯 李振华 |
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| 作者单位： | 中国科学技术大学,火灾科学国家重点实验室,安徽,合肥,230027 |
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| 基金项目： | “十五”国家重点科技攻关项目(2004BA803)，北京计算物理国家重点实验室项目资助 |
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| 摘 要： | 利用CFD技术对在建筑火灾情况下，温度场的变化趋势进行数值模拟。针对大型建筑内部火灾温度场数值模拟特点，考虑建筑火灾中温度、烟气扩散以及尺度较大等因素，通过小尺度数值实验，在模型的效率性和准确性方面对不同模型加以比较、分析，选取带浮力修正的模型。同时，选用国际通用CFD计算软件FLUENT6．1针对某大型建筑内部火灾温度场进行数值模拟。并结合区域模拟软件CFAST对结果进行比较分析。表明CFD场模拟软件FLUENT6．1具有较高的可靠性，可针对大型工程项目进行分析模拟。
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| 关 键 词： | 建筑火灾，数值模拟，温度场 |
| 文章编号： | 1004-5309(2005)02-0121-06 |
| 收稿时间： | 3/6/2005 12:00:00 AM |
| 修稿时间： | 4/3/2005 12:00:00 AM |
Numerical Simulation for the Temperature Field of the Internal Space of Building in Fire |
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| LIU Xiao-ping,ZHOU De-chuang and LI Zhen-hua.Numerical Simulation for the Temperature Field of the Internal Space of Building in Fire[J].Fire Safety Science,2005,14(2):121-126. |
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| Authors: | LIU Xiao-ping ZHOU De-chuang and LI Zhen-hua |
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| Institution: | State Key Laboratory of Fire Science, University of Science and Technology of China, 230027, Anhui, China;State Key Laboratory of Fire Science, University of Science and Technology of China, 230028, Anhui, China;State Key Laboratory of Fire Science, University of Science and Technology of China, 230029, Anhui, China |
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| Abstract: | This paper numerically simulates the trend of the temperature spread in the internal large space of building using computational fluid dynamics. Based on the analysis of different models and the design of suitable fire scene, the smoke spread in a typical building fire is numerically simulated by using the computational fluid dynamics software Fluent, and the results are compared with those by the zone-model simulation software CFAST. The numerical results have useful values for engineering applications. |
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| Keywords: | building fire numerical simulation smoke spread |
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