辽宁石油化工大学学报2013，Vol.33Issue(2)：36-38,47,4.DOI:10.3696/j.issn.1672-6952.2013.02.009
直接间断有限元方法在计算输油管道土壤温度场中的应用
Application of the Direct Discontinuous Galerkin Finite Element Method for the Calculation of Soil Temperature Field of Oil Pipeline
摘要
Abstract
The direct discontinuous Galerkin (DG) method was applied to calculate the soil instable temperature field of underground heated pipeline.This method applied partial integration from each computational cell for the heat transfer equation and obtained weak formulation.The direct DG was obtained by building appropriate numerical flux.The ordinary differential equations were gained by solving spatial discretization by means of the explicit Euler method.Through the calculation of the radial temperature field of heated pipeline,its results coincide with other references'.Thus means that the direct discontinuous Galerkin method is an efficient and accurate numerical method for the calculation of instable temperature field.关键词
直接间断有限元方法/输油管道/土壤温度场Key words
Direct discontinuous galerkin method/ Oil transmission pipeline/ Soil temperature field分类
数理科学引用本文复制引用
张荣培,王荣荣..直接间断有限元方法在计算输油管道土壤温度场中的应用[J].辽宁石油化工大学学报,2013,33(2):36-38,47,4.基金项目
国家自然科学基金项目(11261035). （11261035）
