| 河流穿越管道小孔泄漏数值模拟 |
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| 引用本文： | 符泽第,兰惠清,张永龙,杜永平. 河流穿越管道小孔泄漏数值模拟[J]. 油气储运, 2014, 0(1): 10-14 |
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| 作者姓名： | 符泽第 兰惠清 张永龙 杜永平 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院,北京100044 |
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| 基金项目： | 国家质量监督检验检疫总局公益性行业科研专项课题“埋地管道泄漏事故分析与事故应急关键技术研究”,201010025-04;中央高校基本科研课题“埋地管道内轻质非水相流体的泄漏扩散规律研究”,2013JBM074. |
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| 摘 要： | 针对河流穿越管道泄漏后油品在水中的迁移扩散问题，采用计算流体力学中的有限体积法，选取标准K-ε湍流模型，建立河流穿越管道小孔泄漏的数值仿真模型。模拟了柴油在水域中的迁移扩散过程，并分析比较不同泄漏孔径、泄漏速度和水流速度条件下的油品体积分数和扩散范围。研究结果表明：泄漏速度、泄漏孔径和水流速度不仅直接影响油品在水中的扩散轨迹及迁移方式，而且会改变油品在水中的体积分数和扩散范围，该研究可为建立河流穿越管道漏油应急预报系统提供理论畚考。（图10，表1，参10）
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| 关 键 词： | 河流穿越管道 数值模拟 小孔泄漏 |
Numerical simulation on small hole leakage of river crossing pipeline |
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| FU Zedi,LAN Huiqing,ZHANG Yonglong,DU Yongping. Numerical simulation on small hole leakage of river crossing pipeline[J]. Oil & Gas Storage and Transportation, 2014, 0(1): 10-14 |
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| Authors: | FU Zedi LAN Huiqing ZHANG Yonglong DU Yongping |
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| Affiliation: | (College of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, 100044) |
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| Abstract: | Targeting at the diffusion of leaked oil for rivererossing pipeline, finite volume method and k-ε turbulent flow model are chosen to build a numerical simulation model of small hole leakage of river crossing pipelines. The diffusion process of diesel in water is simulated. The volume fraction and diffusion range of diesel under different leak hole diameter, leaking velocity and flow velocity of water are analyzed and compared. The results show that leaking velocity, diameter of leak hole and flow velocity of water can not only directly affect the diffusion trajectory and migration manner of diesel in water, but also change the volume fraction and diffusion range of diesel in water. This research can provide a theoretical reference to the construction of emergency prediction system of leakage accident of river crossing pipeline. （10 Figures, 1 Table, l0 References） |
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| Keywords: | river crossing pipeline numerical simulation small hole leakage |
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