计算物理 ›› 2006, Vol. 23 ›› Issue (5): 614-620.
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王菊芬, 蒲家宁, 孟浩龙
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WANG Ju-fen, PU Jia-ning, MENG Hao-long
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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
中图分类号:
TE89
王菊芬, 蒲家宁, 孟浩龙. 输油管道油流静电带电数值计算[J]. 计算物理, 2006, 23(5): 614-620.
WANG Ju-fen, PU Jia-ning, MENG Hao-long. Computation of Flow Electrification in Oil Pipes[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2006, 23(5): 614-620.
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