| 饱和—非饱和流溶质运移的实验及数值模拟研究 |
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| 引用本文： | 史海滨.饱和—非饱和流溶质运移的实验及数值模拟研究[J].内蒙古农业大学学报(自然科学版),1991(4). |
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| 作者姓名： | 史海滨 |
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| 作者单位： | 内蒙古农牧学院水利工程系 |
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| 摘 要： | 本文在水盐运移实验基础上,正确地采用了考虑土壤不动水体与吸附作用的溶质运移数学模型和以v为因变量的土壤水分数学模型。在非饱和蒸发条件下对各种求解溶质运移方程的数值方法进行了系统比较,采用了适合于本研究特征—饱和—非饱和流的特征—有限元法对灌溉入渗、蒸发和再分配条件下饱和—非饱和土壤溶质运移规律作了较系统的计算机数值模拟与预测研究。
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| 关 键 词： | 饱和—非饱和 土壤吸附 不动水体 盲孔 水动力弥散 数值模拟 |
Experiment and Numerical Simulation Study on Solute Transfer throuth Saturated-Unsaturated Soil |
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| Shi Haibin.Experiment and Numerical Simulation Study on Solute Transfer throuth Saturated-Unsaturated Soil[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),1991(4). |
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| Authors: | Shi Haibin |
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| Institution: | Department of water Conservancy Engineering.Inner Mongolia Institute of Agriculture and Animal Husbanday |
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| Abstract: | Based on the experiment of the soil water-salt movement,a mathemat-ical model of solute transport in soils under influnce of soil absorption andimmobile water and a mathematical model of soil water movement were used.After compared with the numerical solutions of solute convection-diffusi onequation in the one-dimensional saturated-unsaturated soil under evaporationcondition,the numerical method of the Characteristic Method combined withFinite Element scheme (CMFE) was used to calculate and simulate solutetransfer through the saturated and unsaturated soils systematically underirrigation (infiltration),evaporation and redistribution conditions. |
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| Keywords: | saturated-unsaturated soil absorption immobile water dead end hydrodynamic dispersion numerical simulation |
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