| 区域模拟方法在性能化防火设计工程中的适用性 |
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| 引用本文： | 周德闯,刘晓平,李振华,汪箭.区域模拟方法在性能化防火设计工程中的适用性[J].中国科学技术大学学报,2006,36(1):110-115. |
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| 作者姓名： | 周德闯 刘晓平 李振华 汪箭 |
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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： | 科技部专项基金;教育部留学基金 |
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| 摘 要： | 以区域模拟软件CFAST和场模拟软件PHOENICS为工具，选取了性能化防火设计工程中的两种典型火灾场景计算结果进行比较，体现出区域模拟方法在工程应用中的适用性特点．分析了区域模拟结果不合理的原因；验证了CFAST区域模型仍适用于规则大空间，不适用于尺寸比例超过10的狭长竖高空间的结论；提出了一种针对不能合理划分单元的复杂火灾场景，在单元间采用等效开口面积体现烟气运动影响的新的建模方法；数值实验结果表明该方法是可行的．
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| 关 键 词： | 性能化 区域模拟 适用性 烟气运动 |
| 文章编号： | 0253-2778(2006)01-0110-06 |
| 收稿时间： | 11 2 2005 12:00AM |
| 修稿时间： | 12 1 2005 12:00AM |
Applicability of zone method in performance-based design project |
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| ZHOU De-chuang,LIU Xiao-ping,LI Zhen-hua,WANG Jian.Applicability of zone method in performance-based design project[J].Journal of University of Science and Technology of China,2006,36(1):110-115. |
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| Authors: | ZHOU De-chuang LIU Xiao-ping LI Zhen-hua WANG Jian |
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| Institution: | State Key Lab of Fire Science, USTC , Hefei 230027, China |
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| Abstract: | Two typical fire scenarios were simulated by zone simulation software CFAST and field simulation software PHOENICS, and the comparison between the results shows that the zone method is feasible. The causes of unreasonable results of the zone method were analyzed, and the simulation results verify that zone model of CFAST is suitable for regular large scale buildings, but is not suitable for complicated buildings containing long, narrow and vertical spaces, especially when the ratio of compartment dimension exceeds 10. A new modeling method for complicated scenarios that can not be compartmentalized is proposed, and the results of the numerical experiment show that the method is feasible. |
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| Keywords: | performance-based design zone model applicability smoke movement |
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