埋地输油管道泄漏对大地温度场影响数值模拟  

Numerical Simulation for Effect of Underground Pipeline Leakage on the Earth Temperature Field

作　　者：高雪利[1] 马贵阳[1] 高忠杰[1] 

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《当代化工》2011年第3期294-296,共3页Contemporary Chemical Industry

基　　金：辽宁省自然科学基金资助项目基金号:20082186

摘　　要：管道泄露后引起流体能量迁移,渗流场对温度场产生较大影响。分析了渗流场与土壤温度场的耦合作用,采用有限容积法建立管道泄漏多孔介质流固耦合换热数学模型,界定合理的边界条件,利用SIMPLE算法进行数值求解。得到了管道泄漏前后大地温度场的变化规律。结果表明:管道泄漏后,一定时间内管道附近大地温度场波动明显。随着泄漏时间的延续影响区内温度场变化逐渐趋于平稳。在管线周围一定范围内布置光纤传感器,应用分布式光纤温度传感技术检查管道泄漏是可行的。The pipeline leak can cause fluid energy transfer,and the seepage field has great impact on temperature field.In this paper,coupling effect of seepage field and soil temperature field was analyzed.Heat transfer mathematic model in porous medium on account of fluid-solid coupling effect around pipeline leak points was established by the finite volume method,the reasonable boundary conditions were defined,numerical calculation was carried by SIMPLE numerical algorithm.Change rule of temperature field before and after pipeline leak was gained.The results show that： after pipeline leak,within certain time,the earth temperature field near the pipeline fluctuates obviously;along with continuation of leakage time,the temperature field in the area gradually tends to steady.Through laying fiber-optic sensors around the pipeline,pipeline leak check can be realized by distributed optical fiber temperature sensor technology.

关 键 词：分布式传感技术 光纤温度传感器 泄漏 多孔介质 温度场 

分 类 号：TE973[石油与天然气工程—石油机械设备]