有限单元法在输油管道土壤温度场中的应用  

The Application of Finite Element Method to Soil Temperature Field of Hot Oil Pipeline

作　　者：龚智力[1] 薛晓剑 

机构地区：[1]榆林学院化学与化工学院 [2]榆林工业学校基础教研组,陕西榆林719000

出　　处：《榆林学院学报》2012年第4期34-36,共3页Journal of Yulin University

摘　　要：涉及输油管道土壤传热温度场时,线热源法、当量环法都都假设热油管道在土壤中的传热为稳定过程,计算结果与实际情况相比存在较大误差。采用有限单元法,对热油管道径向温度场和热流密度场进行了数值计算,模拟结果为以后预测土壤传热规律,制定合理输油工艺提供一定的理论基础。When some complex heat transfer problems of soil temperature field are accompanied with hot oil pipe- lines, the computation results of linear heat source method and equivalent ring method exist large errors compared to actual results assuming that the heated crude oil transport in pipelines is in a steady heat transfer process. The nu- merical simulation on radial temperature field and the heat flux changing based on the finite element method offers the theoretical foundation for predicting soil heat transfer law and establishing rational transportation process.

关 键 词：埋地管道 土壤温度场 非稳态 数值模拟 有限元 

分 类 号：TE88[石油与天然气工程—油气储运工程]