| 多孔介质中低速气体的非线性渗流 |
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| 引用本文： | 陈代珣,王章瑞,高家碧.多孔介质中低速气体的非线性渗流[J].西南石油大学学报（自然科学版）,2002,24(5):40. |
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| 作者姓名： | 陈代珣 王章瑞 高家碧 |
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| 作者单位： | 西南石油学院电子信息工程学院,四川南充637001 |
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| 摘 要： | 在多孔介质中,通过对低速渗流气体的摩阻系数f 与雷诺数Re 的实验关系分析得出,随着雷诺数减小,气体的渗流规律表现出由遵从达西线性关系连续转变为非线性关系,其转变所对应的雷诺数Rec = (1. 0 ～ 4. 4) ×10- 4 。由动力学分析可知,低速渗流气体出现的非线性现象是由气体分子与孔隙壁的作用引起, 并给出了相应条件下渗流速度V 与压力梯度Δp/ΔL 的关系。
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| 关 键 词： | 多孔介质 气体 低速渗流 雷诺数 非线性 |
| 收稿时间： | 2002-04-06 |
NONLINEAR FLOW OF GAS AT LOW VELOCITY IN POROUS MEDIA |
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| CHEN Dai-xun,WANG Zhang-rui GAO Jia-bi.NONLINEAR FLOW OF GAS AT LOW VELOCITY IN POROUS MEDIA[J].Journal of Southwest Petroleum University(Seience & Technology Edition),2002,24(5):40. |
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| Authors: | CHEN Dai-xun WANG Zhang-rui GAO Jia-bi |
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| Institution: | Southwest Petroleum Institute , NanchongSichuan 637001 , China |
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| Abstract: | The experiment data about friction resistance coefficients fand Reynoid numbers Re are analyzed to study the law of gas flow at low velocity in tight porous media. As Re decreases , the porous flow of gas shows nonlinear phenomena deviation off Darcy’s law linear phenomena , and corresponding Rec = (1. 0～4. 4) ×10 - 4 . The collisions occurred between gas moleculeand pore wall cause the nonlinear phenomena. The relationship of flow velocity V and pressure grade Δp/ΔL is given according to theory analysis. |
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| Keywords: | porous media gas flow low velocity reynoids number nonlinear |
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