辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2007, Vol. 27 ›› Issue (1): 40-43.

• 化工机械 • 上一篇    下一篇

埋地管道周围土壤水热耦合温度场的数值模拟

马贵阳, 刘晓国, 郑 平   

  1. 辽宁石油化工大学储运与建筑工程学院, 辽宁抚顺113001
  • 收稿日期:2006-07-24 出版日期:2007-03-20 发布日期:2017-07-05
  • 作者简介:马贵阳(1965 - ), 男, 内蒙古宁城县, 教授, 博士。

Numerical Simulation for Soil Hydrothermal Coupling Temperature Field Around Underground Pipelines

  1. School of Storage - Transport and Architecture Engineering , Liaoning University of Petroleum &Chemical Technology ,
    Fushun Liaoning 113001 , P. R. China
  • Received:2006-07-24 Published:2007-03-20 Online:2017-07-05

摘要:         冻土区埋地管道遇到的最常见问题是冻害破坏, 研究埋地管道发生冻害及其科学有效的防止方法,首先应预测埋地管道周围冻土冻融过程中温度场的变化及温度场与水分场的变化关系。用有限单元法对埋地管道周围温度场进行了数值模拟, 计算中考虑了土壤中水分迁移和相变对温度的影响, 给出了不同时刻埋地管道周围温度分布。对计算结果分析表明, 水分迁移和相变对土壤的传热有一定影响.

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关键词: 冻土,  埋地管道,  水分迁移,  相变,  数值模拟

Abstract:

        A freezing damage is a common problem that pipe lines is buried in fro zen underground area encounter. To study freezing damage and take scientific and effective measures to prevent freezing damage , it is necessary to predict the changes of the temperature field of frozen soils around underground pipelines in the frozen - thaw process , and the change relationship between the temperature field and moisture field. The temperature field of the soils around underground pipelines was numerically simulated by using finite elements method. The influence of moisture transfer and phase change on temperature was taken into consideration. The temperature distributions of the soils around pipeline at different time were given, and the results were analyzed. The results show that the moisture transfer and the phase change have definite effects on heat transfer of the soils, which should be considered in calculation.

Key words: Frozen ground,    , Underground pipelines,    , Moisture transfer ,    , Phase change ,    , Numerical simulation

引用本文

马贵阳, 刘晓国, 郑 平. 埋地管道周围土壤水热耦合温度场的数值模拟[J]. 辽宁石油化工大学学报, 2007, 27(1): 40-43.

MA Gui - y ang,LIU Xiao - guo,ZHENG Ping. Numerical Simulation for Soil Hydrothermal Coupling Temperature Field Around Underground Pipelines[J]. Journal of Liaoning Petrochemical University, 2007, 27(1): 40-43.

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