|本期目录/Table of Contents|

[1]陈长坤,王玮玉,刘晅亚.隧道内甲醇液体蒸发及蒸气扩散规律数值模拟分析[J].中国安全生产科学技术,2017,13(12):52-57.[doi:10.11731/j.issn.1673-193x.2017.12.008]
　CHEN Changkun,WANG Weiyu,LIU Xuanya.Numerical simulation analysis on evaporation of methanol liquid and diffusion laws of methanol vapor in tunnel[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(12):52-57.[doi:10.11731/j.issn.1673-193x.2017.12.008]
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隧道内甲醇液体蒸发及蒸气扩散规律数值模拟分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年12期
页码:
52-57
栏目:
学术论著
出版日期:
2017-12-31

文章信息/Info

Title:
Numerical simulation analysis on evaporation of methanol liquid and diffusion laws of methanol vapor in tunnel
文章编号:
1673-193X(2017)-12-0052-06
作者:
陈长坤1; 王玮玉1; 2; 刘晅亚3
（1.中南大学 防灾科学与安全技术研究所, 湖南 长沙 410075；2.中国长江三峡集团公司， 湖北 宜昌 443002；3.建筑消防工程技术公安部重点实验室，天津 300381)
Author(s):
CHEN Changkun1;  WANG Weiyu1; 2;  LIU Xuanya3
(1. Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha Hunan 410075, China; 2. China Three Gorges Corporation, Yichang Hubei 443002, China; 3. Key laboratory of Building Fire Protection Engineering and Technology of MPS, Tianjin 300381, China)
关键词:
安全工程; 隧道; 甲醇; 蒸发; 蒸气扩散
Keywords:
safety engineering;  tunnel;  methanol;  evaporation;  vapor diffusion
分类号:
X951
DOI:
10.11731/j.issn.1673-193x.2017.12.008
文献标志码:
A
摘要:
为了研究隧道内甲醇液体蒸发及蒸气扩散规律，应用CFD方法进行了研究，分析了隧道内甲醇蒸气浓度分布规律。结果表明：浅液池上方、车辆底部及两侧位置出现甲醇蒸气的积聚，蒸气浓度分层具有一定的规律性，纵截面浓度分层较明显；甲醇蒸气主要分布于隧道中下部位置，尤其在距离地面1 m以下的空间，在泄漏源上方、车辆底部、车辆两侧均可能出现蒸气接近或超过爆炸极限的区域；隧道内障碍车辆底部和两侧较低位置蒸气产生积聚，同时车辆也阻碍了蒸气向对侧隧道口的扩散。
Abstract:
To study the evaporation of methanol liquid and the diffusion laws of methanol vapor in tunnel, the CFD method was applied to analyze the distribution laws of methanol vapor concentration in the tunnel. The results showed that the accumulation of methanol vapor could be found at the bottom and both sides of the vehicle as well as over the shallow liquid pool, and the concentration stratification of vapor had a certain regularity with the obvious concentration stratification on the longitudinal section. The methanol vapor mainly distributed in the middle and lower parts of the tunnel, especially in the space below the height of 1 m from the ground surface. The area where the methanol vapor concentration is close to or exceeds the explosion limit might appear over the leakage source, at the bottom and both sides of the vehicle. The phenomenon of vapor accumulation appeared at the bottom and lower positions of both sides of the vehicle in the tunnel, and the vehicle hindered the diffusion of methanol vapor to the tunnel entrance at the opposite side.

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备注/Memo

备注/Memo:
国家自然科学基金项目（51576212, 51534008）；建筑消防工程技术公安部重点实验室开放课题(KFKT2014ZD02)
更新日期/Last Update: 2018-01-29