| 共同沟安全研究的数值仿真 |
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| 引用本文： | 方自虎,王家远. 共同沟安全研究的数值仿真[J]. 吉首大学学报(自然科学版), 2005, 26(1): 27-29 |
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| 作者姓名： | 方自虎 王家远 |
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| 作者单位： | 深圳大学建筑与土木工程学院土木系,广东,深圳,518060;深圳大学建筑与土木工程学院土木系,广东,深圳,518060 |
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| 基金项目： | 建设部应用项目研究基金资助项目(04-20-81) |
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| 摘 要： | 对于气体泄漏的几种释放量进行了模型试验，数值模拟了在带有燃气管道的共同沟中燃气泄漏后的摩尔组分浓度分布.对比模型试验结果发现：在气体泄漏点的一定范围内，标准κ－ε湍流计算模型能够模拟燃气的泄漏，数值计算的燃气浓度能够满足工程精度要求，工程中的三维湍流问题可以进行数值仿真.
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| 关 键 词： | 流体动力学 共同沟 数值模拟 模型试验 燃气 三维湍流 κ-ε模型 |
| 文章编号： | 1007-2985(2005)01-0027-03 |
| 修稿时间： | 2004-11-21 |
Research into the Security of Utility Tunnel Using Numerical Simulation |
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| FANG Zi-hu,WANG Jia-yuan. Research into the Security of Utility Tunnel Using Numerical Simulation[J]. Journal of Jishou University(Natural Science Edition), 2005, 26(1): 27-29 |
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| Authors: | FANG Zi-hu WANG Jia-yuan |
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| Affiliation: | (Department of Civil Engineering,College of Architecture & Civil Engineering,Shenzhen University,Shenzhen 518060，Guangdong China) |
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| Abstract: | The tests on several rates of flow of gas were carried out.Based on the tests,distribution of gas mole fraction in utility tunnel was calculated using numerial simulation.In comparison with the experimental results,it is found that the gas mole fraction can be simulated by standard κ－ε turbulent model and the numerical accuracy nearby gas leakage point is almost good according to the demand of engineering.The results show that three-dimensional tuberlence in engineering can be simulated. |
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| Keywords: | fluid dynamics；utility tunnel；numerical simulation；experiment；gas；three-dimensional turbulence；κ－εmodel |
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