| 海洋L形立管系统不稳定流简化计算模型 |
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| 引用本文： | 张强,邓道明,董勇,涂多运,吴海浩,宫敬.海洋L形立管系统不稳定流简化计算模型[J].油气储运,2014(1):95-98,107. |
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| 作者姓名： | 张强 邓道明 董勇 涂多运 吴海浩 宫敬 |
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| 作者单位： | [1]中国石油大学北京油气管道输送安全国家工程实验室、城市油气输配技术北京市重点实验室,北京102249 [2]惠州市大亚湾华德石化有限公司,广东惠州516081 [3]中国石油工程设计有限公司西南分公司,四川成都610017 |
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| 基金项目： | 国家科技重大专项“深水流动安全设计与流动管理技术”,2011ZX05026-004-03,2008ZX05030-005-12. |
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| 摘 要： | 根据严重段塞流4个阶段的特点，针对L形立管系统不稳定流建立了一维准平衡态简化计算模型，其忽略摩阻和加速度的影响，立管中气相穿透过程应用漂移流模型。气相穿透、气液喷发阶段采用特征线方法求解，并引入气相密度偏移修正过程，能够对典型严重段塞流和液塞长度小于立管高度的过渡严重段塞流进行模拟。将模型计算结果与实验室结果以及其他文献的实验数据进行对比，结果表明模型能够对L形立管系统中的两相不稳定流动进行较准确的模拟。（图2，表3，参16）。
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| 关 键 词： | L形立管 严重段塞流 不稳定流 瞬态 流动特性 漂移流模型 计算模拟 |
Simplified calculation model for unsteady flow in marine L-type riser system |
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| ZHANG Qiang,DENG Daoming,DONG Yong,TU Duoyun,WU Haihao,GONG Jing.Simplified calculation model for unsteady flow in marine L-type riser system[J].Oil & Gas Storage and Transportation,2014(1):95-98,107. |
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| Authors: | ZHANG Qiang DENG Daoming DONG Yong TU Duoyun WU Haihao GONG Jing |
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| Affiliation: | 1. Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum (Beijing), Beijing, 102249; 2. Huade Petrochemical Co. Ltd., Huizhou, Guangdong, 521081; 3. Southwest Sub-company, PetroChina Engineering Design Co. Ltd., Chengdu, Sichuan, 610017) |
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| Abstract: | Based on the features of severe slug flow distributed in 4 stages, this paper sets up a one-dimentional quasi- equilibrium simplified calculation model for the unsteady flow in the L-type riser system, which ignores the effects of friction and acceleration, and uses the drift flow model to simulate the gas phase penetration. Characteristic method is used to solve the gas phase penetration stage and gas liquid eruption stage. The gas density offset correction is introduced to simulate the typical severe slug flow and transitional severe slug flow in which the length of the liquid slug is smaller than the height of the riser. Comparison of calculated results from the model with the laboratory results and experimental data from other literatures shows that the built model is able to make a rather accurate simulation and prediction on the two-phase unsteady flow in the L-type riser system. （2 Figures, 3 Tables, 16 References） |
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| Keywords: | L-type riser severe slug flow unsteady flow transient flow characteristics drift flow model calculationsimulation |
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