| 内置障碍物连通容器内气体爆炸的火焰传播 |
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| 引用本文： | 尤明伟,喻源,蒋军成.内置障碍物连通容器内气体爆炸的火焰传播[J].南京工业大学学报(自然科学版),2011,33(1):90-94. |
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| 作者姓名： | 尤明伟 喻源 蒋军成 |
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| 作者单位： | 1. 南京工业大学,城市建设与安全工程学院,江苏,南京,210009;福建消防总队,福建,福州,350003
2. 南京工业大学,城市建设与安全工程学院,江苏,南京,210009 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省高校自然科学基金资助项目 |
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| 摘 要： | 利用数值模拟方法,建立连通容器气体爆炸模型,模拟内置障碍物条件下的火焰传播过程。分析障碍物不同阻塞率、位置对连通容器气体爆炸的火焰传播、爆炸压力和强度的影响情况。结果表明:当火焰经过障碍物时,障碍物加速了火焰传播,但不同障碍物条件对整个火焰传播过程的影响有差异。
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| 关 键 词： | 连通容器 气体爆炸 障碍物 数值模拟 |
Flame propagation by gas explosion in linked vessels with built-in obstacle |
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| YOU Mingwei,YU Yuan,JIANG Juncheng.Flame propagation by gas explosion in linked vessels with built-in obstacle[J].Journal of Nanjing University of Technology,2011,33(1):90-94. |
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| Authors: | YOU Mingwei YU Yuan JIANG Juncheng |
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| Institution: | 1(1.College of Urban Construction and Safety Engineering,Nanjing University of Technology,Nanjing 210009,China;2.Fujian Fire Bureau,Fuzhou 350003,China) |
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| Abstract: | Flame propagation had great effect on the development of the explosion.Based on k-ε turbulence model and Eddy-Dissipation-Concept(EDC)combustion model considering detailed chemical kinetic mechanism,the mathematical model on gas explosions in linked vessels with built-in obstacle was established by the software FLUENT.The evolution of pressure and flame propagation in linked vessels with many obstacle conditions were obtained and analyzed.The results indicated that obstacles could accelerate the flame.But different obstacle condition had different complicated effects on the velocity of the flame arriving into the second vessel and different flame propagation processes. |
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| Keywords: | linked vessel gas explosion obstacle numerical simulation |
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