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[1]付吉强,吴明,杜明俊,等.埋地管道周围土壤湿热耦合相变过程的数值计算[J].油气储运,2011,30(01):30-033.[doi:10.6047/j.issn.1000-8241.2011.01.008]
　Fu Jiqiang,Wu Ming,Du Mingjun,et al.Numerical calculation on heat-moisture coupling and phase change process of the soil around buried pipeline[J].Oil & Gas Storage and Transportation,2011,30(01):30-033.[doi:10.6047/j.issn.1000-8241.2011.01.008]

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埋地管道周围土壤湿热耦合相变过程的数值计算

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 30 期数: 2011年01期页码: 30-033 栏目: 出版日期: 2011-01-25

Title:: Numerical calculation on heat-moisture coupling and phase change process of the soil around buried pipeline

文章编号:: 1000-8241（2011）01-0030-04

作者:: 付吉强; 吴明; 杜明俊; 付晓东; 张春生; 辽宁石油化工大学石油天然气工程学院，辽宁抚顺 113001

Author(s):: Fu Jiqiang; Wu Ming; Du Mingjun; et al; buried pipeline，periodical boundary condition，porous media，heat-moisture coupling，phase change，numerical calculation，model

关键词:: 埋地管道; 周期性边界条件; 多孔介质; 湿热耦合; 相变; 数值计算; 模型

Keywords:: Fu Jiqiang：Oil and Gas Engineering; Liaoning Shihua University; Fushun; Liaoning.

分类号:: TE863

DOI:: 10.6047/j.issn.1000-8241.2011.01.008

文献标志码:: A

摘要:: 基于有限容积法，建立了多孔介质相变自然对流换热模型。以在饱和含水多年冻土区敷设的输油管道为例，采用 SIMPLER 算法，数值计算了地表温度周期性变化条件下，埋地热油管道的非稳
态传热过程，得到了不同季节管道周围冻土温度场、土冰层融化移动界面及水分迁移规律。研究表明：在地表温度的周期性波动下，管道周围土壤温度场变化剧烈；受温度梯度和重力的影响，土壤中的水分形成沿管道中心线自上而下的自然对流涡旋；随着地表温度的变化，自然对流涡旋中心的形态和强度发生明显变化，说明温度梯度对水分迁移的影响较大。

Abstract:: A natural convection heat exchange model for a porous media phase change is established based on finite volume method. Taking the pipeline in the permafrost saturated area as an example and by utilizing SIMPLER algorithm to calculate the heat transfer process of buried pipeline，it gives the law of temperature field of the permafrost around pipe and the moving interface of soil and ice and moisture transfer in different seasons. The study shows that the temperature field varies sharply with the periodical ground temperature change. A natural convection eddy is formulated when moisture transfer from top to bottom of the pipeline centerline due to temperature gradient and gravity. The pattern and intensity of the natural convection changes with the variation of ground temperature，which shows the moisture transfer is greatly affected by the temperature gradient.
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参考文献/References:

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[3]吕宏庆，李均峰，苏毅.多年冻土区管道的失效形式及监测技术[J].天然气工业，2008，28（9）：98-100.
[4]卢涛，姜培学.多孔介质融化相变自然对流数值模拟[J].工程热物理学报，2005，26（z1）：167-176．
[5]卢涛，佟德斌．饱和含水土壤埋地原油管道冬季停输温降[J].北京化工大学学报，2006，33（4）：37-40．
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备注/Memo

作者简介：付吉强，在读硕士生，1987 年生，2008 年毕业于东北石油大学油气储运工程专业，现主要从事油气长输管道输送技术研究。
电话：15841344475；Email：fjq127@126.com????? （收稿日期：2010-04-13）

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