| 偏心环空层流螺旋流动的近似解析解 |
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| 引用本文： | 蒋世全,施太和.偏心环空层流螺旋流动的近似解析解[J].水动力学研究与进展(A辑),1995,10(5):560-570. |
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| 作者姓名： | 蒋世全 施太和 |
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| 作者单位： | 大连理工大学土木系，西南石油学院 |
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| 摘 要： | 本文分析计算了石油钻井工程偏心环空中内管转动的螺旋流动，将偏心环空的三维流动简化为环空薄层内的二维流动，从黎曼空间曲面张量表达的动量方程出发，求得了偏心环空层流螺旋流动速度的近似解析解。用此方程的同心环空表达式与精确解比较，精度较高。
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| 关 键 词： | 偏心环空 螺旋流 管流 石油钻井 |
An Analytic Solution of Spiral Flow in an Eccentric Annulus |
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| Jiang Shi-quan.An Analytic Solution of Spiral Flow in an Eccentric Annulus[J].Journal of Hydrodynamics,1995,10(5):560-570. |
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| Authors: | Jiang Shi-quan |
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| Abstract: | In this paper the spiral velocity of eccentric annulus with inner pipe turned is analysed and computed. The tensor equation of momentum in three- dimensional descartes coordinate casts light upon Riemann curved surface space.Newtonian fluid spiral velocity fields under condition of presure and drill pipe rotation are resovied. A velocity section comparison between precise value and the approximate value of tensor method in the spiral flow of coaxial annulus is acceptable in precision. |
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| Keywords: | eccentric annulus spiral flow Riemann curved surface tensor |
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