| 双套环测定土壤渗透系数数值模拟分析 |
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| 引用本文： | 冶运涛,伍靖伟,王兴奎.双套环测定土壤渗透系数数值模拟分析[J].灌溉排水学报,2007,26(3):14-18. |
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| 作者姓名： | 冶运涛 伍靖伟 王兴奎 |
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| 作者单位： | 1. 清华大学,水利水电工程系,北京,100084
2. 武汉大学,水利水电学院水利系,武汉,430072 |
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| 摘 要： | 针对双套环测定土壤渗透系数试验过程中的主要问题,建立了双套环渗透试验的数学模型,运用数值模拟方法分析了环内水头、外内环半径比、内径和插深4个主要因素对测量精度的影响规律,提出了运用双套环测定不同质地土壤渗透系数时不同水头作用下的修正公式和最优试验方案。
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| 关 键 词： | 双套环 土壤渗透系数 数值模拟 |
| 文章编号： | 1672-3317（2007）03-0014-05 |
| 修稿时间： | 2006-07-26 |
Numerical Simulation of Double-Ring Measuration on Hydraulic Conductivity |
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| YE Yun-tao,WU Jing-wei,WANG Xing-kui.Numerical Simulation of Double-Ring Measuration on Hydraulic Conductivity[J].Journal of Irrigation and Drainage,2007,26(3):14-18. |
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| Authors: | YE Yun-tao WU Jing-wei WANG Xing-kui |
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| Institution: | 1. Department of Hydraulic Engeering, Tsinghua University, Beijing 100084, China;2. School of Water Resource and Hydropower, Wuhan University, Wuhan 430072, China |
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| Abstract: | Aiming at the main problems of the double-ring experiment on hydraulic conductivity,the mathematical model of double-ring measuration is built up.Based on the numerical results,the paper analyzes the influence on measurement accuracy laws of the factors,including inner ring radius,insertion depth,constant water head and ratio of outer ring radius and inner ring radius and puts forward the modified formula for different head and the way to determine the optimum scheme for the double ring experiment. |
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| Keywords: | double-ring hydraulic conductivity numerical simulation |
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