Numerical simulation of a buried hot crude oil pipeline during shutdown  

作　　者：Xu Cheng Yu Bo Zhang Zhengwei Zhang Jinjun Wei Jinjia Sun Shuyu 

机构地区：[1]Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249,China [2]Zhejiang Department Preparatory Team, PetroChina West East Gas Pipeline Company, Hangzhou, Zhejiang 310000, China [3]State Key Laboratory of Multiphase Flow in Power Engineering, Xi＇an Jiaotong University, Xi＇an, Shaanxi 710049, China [4]Department of Mathematical Sciences, Clemson University, Clemson, SC 29634-0975, USA

出　　处：《Petroleum Science》2010年第1期73-82,共10页石油科学（英文版）

基　　金：supported by National High-tech R&D Program of China (No. 2006AA09Z357);the National Science Foundation of China (No. 50876114, No. 10602043);the Program for New Century Excellent Talents in University (NCET-07-0843) and SRF for ROCS, SEM;supported by the State Key Laboratory of Multiphase Flow in Power Engineering (Xi'an Jiaotong University)

摘　　要：In this paper a mathematical model is built for a buried hot crude oil pipeline during shutdown, and an unstructured grid and polar coordinate grid are respectively applied to generating grids for the soil region and the three layers in the pipe （wax layer, pipe wall, and corrosion-inhibiting coating）. The governing equations are discretized using the finite volume method. The variations in temperatures of static oil and soil were investigated during pipeline shutdown in both summer and winter, in which some important parameters of the soil and crude oils of a Northeast pipeline are employed.In this paper a mathematical model is built for a buried hot crude oil pipeline during shutdown, and an unstructured grid and polar coordinate grid are respectively applied to generating grids for the soil region and the three layers in the pipe （wax layer, pipe wall, and corrosion-inhibiting coating）. The governing equations are discretized using the finite volume method. The variations in temperatures of static oil and soil were investigated during pipeline shutdown in both summer and winter, in which some important parameters of the soil and crude oils of a Northeast pipeline are employed.

关 键 词：Moving boundary stagnation point equivalent thermal conductivity thermal influence region unstructured grid 

分 类 号：O35[理学—流体力学] TE11[理学—力学]