| 紊流时输油管道油流静电带电计算研究 |
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| 引用本文： | 王菊芬,蒲家宁,孟浩龙.紊流时输油管道油流静电带电计算研究[J].后勤工程学院学报,2005,21(4):63-68. |
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| 作者姓名： | 王菊芬 蒲家宁 孟浩龙 |
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| 作者单位： | 后勤工程学院,军事供油工程系,重庆,400016;后勤工程学院,军事供油工程系,重庆,400016;后勤工程学院,军事供油工程系,重庆,400016 |
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| 摘 要： | 对紊流条件下输油管道内油流静电带电的计算进行了研究。在合理简化紊流扩散系数和油流速度的基础上,推导出油内有关油流带电的电荷输运方程的解析解,并且根据该解析解导出了冲流电流计算公式。该计算公式同时适用于所有电导率范围内液体介质冲流电流的计算。最后利用文中推出的计算公式对一实验油道的油流带电进行了计算,结果显示公式得到的值和实验值非常吻合。
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| 关 键 词： | 输油管道 油流带电 紊流 冲流电流 壁面电荷密度 |
| 文章编号： | 1672-7843(2005)04-0063-06 |
| 修稿时间： | 2005年7月5日 |
A Study on the Calculation of Streaming Electrification Induced by Turbulent Flows in Oil Pipes |
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| WANG Ju-fen,PU Jia-ning,MENG Hao-long.A Study on the Calculation of Streaming Electrification Induced by Turbulent Flows in Oil Pipes[J].Journal of Logistical Engineering University,2005,21(4):63-68. |
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| Authors: | WANG Ju-fen PU Jia-ning MENG Hao-long |
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| Abstract: | The computation of streaming electrification in turbulent oil pipe flow is studied in this paper. Based on some reasonable simplifications on turbulent eddy diffusivity and mean velocity, an analytical solution to the charge transportation equation related to flow electrification is derived, by which an expression for the streaming current in a pipe is derived. The expression applies for all fluid conductivities. Finally, it is used to calculate streaming currents in experimental oil pipes, and the results show that good agreement is obtained between calculated and experimental values. |
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| Keywords: | oil pipe oil flow electrification turbulence streaming currents charge density at the wall |
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