| 地下水在各向异性土层中的渗流速度 |
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| 引用本文： | 江华中. 地下水在各向异性土层中的渗流速度[J]. 成都信息工程学院学报, 1987, 0(2) |
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| 作者姓名： | 江华中 |
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| 摘 要： | 地下水在多孔土层中渗流速度的达西(Darcy)公式是用实验方法得到的。该公式适用于均质各向同性土层中的海流计算,但对各向异性土层中的渗流计算,则不能直接采用。 本文视地下水在多孔土层中的渗流为不可压粘性流体的缓慢层流运动。不计惯性力的作用,用量纲分析法确定运动方程中的摩擦力项表达式,然后导出了地下水在各向异性土层中的渗流速度公式。所得的结果表明,当土壤各向同性时,该公式即简化为达西速度公式。
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| 关 键 词： | 水力学 达西渗流 量纲分析 |
THE VELOCITY OF THE INFILTRATION FLOW OF GROUND WATER THROUGH ANISOTROPIC SOIL |
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| Jiang Huazhong. THE VELOCITY OF THE INFILTRATION FLOW OF GROUND WATER THROUGH ANISOTROPIC SOIL[J]. Journal of Chengdu University of Information Technology, 1987, 0(2) |
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| Authors: | Jiang Huazhong |
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| Affiliation: | Jiang Huazhong |
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| Abstract: | The Darcy formula of the velocity of the infiltration flow of ground water through porous soil is obtained by means of experimental methods. It is suitable to calculate the infiltration flow through uniform isotropic soil but can not be directly used to calculate the infiltration flow through anisotropic soil.In this paper, the infiltration flow of ground water through porous soil-considered to be slow laminar flow of incompressible viscous fluid. The inertial force is omitted and the expression of the friction term in the equation of motion is determined by means of dimensional analysis. Then, the velocity formula of the infiltration flow of ground water through anisotropic soil is derived. The results indicate that the Darcy formula is easily derived from the formula obtaind. |
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| Keywords: | Hydraulics Darcy Flow Dimensional Analysis. |
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