计算物理 ›› 2006, Vol. 23 ›› Issue (5): 614-620.

• 论文 • 上一篇    下一篇

输油管道油流静电带电数值计算

王菊芬, 蒲家宁, 孟浩龙   

  1. 重庆后勤工程学院供油工程系, 重庆 400016
  • 收稿日期:2005-04-29 修回日期:2005-09-09 出版日期:2006-09-25 发布日期:2006-09-25
  • 作者简介:王菊芬(1975-),女,浙江温岭,博士生,从事油流流动带电现象方面的研究,北京丰台区久敬庄59号空军油料研究所第4研究室100076.

Computation of Flow Electrification in Oil Pipes

WANG Ju-fen, PU Jia-ning, MENG Hao-long   

  1. Department of Oil Supply Engineering, Logistical Engineering University, Chongqing 400016, China
  • Received:2005-04-29 Revised:2005-09-09 Online:2006-09-25 Published:2006-09-25

摘要: 对输油管道内油品流动带电问题的数值计算进行了研究.紊流条件下的电荷输运方程是一个对流占优的对流扩散反应方程,采用算子分裂法,将该方程分解为纯对流方程、纯扩散方程和纯反应方程,分别采用特征线法和差分法求解.算例证明,该方法能准确描述管道内电荷分布,因而提供了一种获取冲流电流的可靠方法.

关键词: 输油管道, 紊流, 流动带电, 冲流电流, 数值计算

Abstract: Computation of flow electrification in oil pipes is studied.The charge transportation equation in turbulent flows is a convection-dominated convection diffusion reaction equation.An operator-splitting scheme is introduced to solve this equation.In the scheme,the equation is split into a pure convection equation,a pure diffusion equation and a pure reaction equation.They are solved by a characteristics method and a finite difference method,respectively.Numerical examples show that this scheme describes the charge distribution in a pipe.A reliable method for streaming current is obtained.

Key words: oil pipe, turbulence, flow electrification, streaming current, numerical computation

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