| 状态方程选取对天然气瞬变管流数值模拟的影响 |
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| 引用本文： | 丁延鹏,李玉星,张帆,刘乐华,曲宁.状态方程选取对天然气瞬变管流数值模拟的影响[J].石油化工高等学校学报,2011(4):64-68,74. |
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| 作者姓名： | 丁延鹏 李玉星 张帆 刘乐华 曲宁 |
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| 作者单位： | 中国石油大学(华东)储运与建筑工程学院;胜利油田油气集输总厂;吉林油田储运销售公司; |
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| 基金项目： | 教育部新世纪人才支持计划(NCET-07-0847); 国家自然基金资助(51074175) |
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| 摘 要： | 采用一维非等温天然气流动模型对天然气输送管线中的瞬变流动进行数值模拟,将SRK,PR,BWRS和AGA8状态方程分别与管流瞬变模型耦合,采用特征线法对数学模型进行特征变换,应用逆步进法进行离散数值求解,算例结果说明4种状态方程对非等温流动模型所得压力和流量参数的精度影响较小,温度结果的偏差也在一般工程允许范围之内,计算速度略有差别,建议依据工程对计算速度和计算精度的不同需要选取适合的状态方程。
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| 关 键 词： | 状态方程 输气管道 瞬变流 数值模拟 非稳态传热 |
Effect of Selection of Equation of State on Dynamic Simulation of Transient Flow in Natural Gas Pipelines |
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| DING Yan-peng,LI Yu-xing,ZHANG Fan,LIU Le-hua,QU Ning.Effect of Selection of Equation of State on Dynamic Simulation of Transient Flow in Natural Gas Pipelines[J].Journal of Petrochemical Universities,2011(4):64-68,74. |
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| Authors: | DING Yan-peng LI Yu-xing ZHANG Fan LIU Le-hua QU Ning |
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| Affiliation: | DING Yan-peng1,LI Yu-xing1,ZHANG Fan1,LIU Le-hua2,QU Ning3(1.College of Pipeline and Civil Engineering,China University of Petroleum,Qingdao Shandong 266555,P.R.China,2.Shengli Oil Field Gas Gathering Plant,Dongying Shandong 257000,3.Sales Plant of Jilin Oilfield Company,Songyuan Jilin 138000,P.R.China) |
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| Abstract: | One-dimensional,non-isothermal gas flow model was adopted to simulate the transient phenomena in gas transmission pipelines.The model was coupled with SRK,PR,BWRS and AGA8 equations of state respectively and solved with the method of characteristics.The results show that there is little difference of pressure and flowrate between the four equations of state,and slice temperature difference existed which is adoptable in practical application.The calculation speed varied,therefore,when selecting the equations... |
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| Keywords: | Equation of state Gas pipeline Transients Dynamic simulation Unsteady heat transfer |
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