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科技导报
|研究论文
2011
, 29
(24) :
67
-70
贮库内偏二甲肼蒸发扩散数值模拟
全屏
黄智勇, 罗锋, 施慧玮, 王煊军
作者信息
Numerical Simulation of Diffusion of Unsymmetrical Dimethylhrazine Under Storage Condition
HUANG Zhiyong, LUO Feng, SHI Huiwei, WANG Xuanjun
Affiliations
The Second Artillery Engineering College, Xi'an 710025, China
出版时间: 2011-08-28
doi: 10.3981/j.issn.1000-7857.2011.24.010
文章导航
采用CFD软件Fluent对贮库内偏二甲肼泄漏后液池蒸发扩散质量分数变化过程进行数值模拟,分析研究了特定通风条件下贮库内气体运动规律和偏二甲肼连续扩散后的质量分数时空分布规律.结果表明,机械排风、负压进风条件下,贮库内气体呈现一定的循环流动;高质量分数区域主要集中在进风口下方;在z 轴方向截面上偏二甲肼气体呈环形分布.
This paper studies the diffusing characteristics and the concentration distribution of unsymmetrical dimethylhydrazine (UDMH) released on the ground and formed into a pool under the storage condition due to some causes. The change process of concentration of UDMH evaporated from the pool on the ground is numerically simulated with Fluent software by the Computational Fluid Dynamic (CFD) method. The movement of the storeroom-air and the space-time distribution characteristics of the concentration of UDMH evaporated continually under some specified aeration conditions are studied. It is shown that the effect of gravity on the dispersion is significant; under the condition of air exhaust by devices and air intake by subatmospheric pressure, the storeroom-air moves in cycles; high concentration areas are mainly under the air intake where the speed of air is low; in the cutter tip of z axis, UDMH is distributed in circles. These results can provide some food of thought for accident disposal.
unsymmetrical dimethylhydrazine
/
mass fraction distribution
/
numerical simulation
黄智勇;罗锋;施慧玮;王煊军.
贮库内偏二甲肼蒸发扩散数值模拟.
科技导报,
2011
, 29
(24)
: 67
-70
.
DOI: 10.3981/j.issn.1000-7857.2011.24.010
HUANG Zhiyong;LUO Feng;SHI Huiwei;WANG Xuanjun.
Numerical Simulation of Diffusion of Unsymmetrical Dimethylhrazine Under Storage Condition[J].
Science & Technology Review ,
2011
, 29
(24)
: 67
-70
.
DOI: 10.3981/j.issn.1000-7857.2011.24.010
2011年第29卷第24期
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文章信息
doi: 10.3981/j.issn.1000-7857.2011.24.010
接收时间:2011-07-01
首发时间:2011-08-28
出版时间:2011-08-28
收稿日期:2011-07-01
修回日期:2011-08-11
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2011.24.010
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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