| 谢婷,王礼广,邓阳君.溶质在土壤中的渗流建模与数值仿真[J].南华大学学报(自然科学版),2015,29(4):63~68.[XIE Ting,WANG Li-guang,DENG Yang-jun.Seepage Modeling and Numerical Simulation of Solute in Soil[J].Journal of University of South China(Science and Technology),2015,29(4):63~68.] |
| 溶质在土壤中的渗流建模与数值仿真 |
| Seepage Modeling and Numerical Simulation of Solute in Soil |
| 投稿时间：2015-05-28 |
| DOI： |
| 中文关键词: 溶质运移 渗流 达西定律 有限体积法 数值模拟 |
| 英文关键词:solute transport seepage Darcy's law the finite volume method numerical simulation |
| 基金项目: |
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| 中文摘要: |
| 针对液态溶质在土壤中的渗流问题,利用数学模型描述了符合达西定律的二维非稳定渗流,并运用有限体积法对该模型进行了数值求解.得出了给定渗流场不同渗透系数、单位贮藏量下的水头、渗流量的变化规律,模拟了液态溶质在土壤中的渗流过程.通过对计算结果的可视化处理、比较分析,发现渗透系数、单位贮藏量等因素对液态溶质在土壤中的运移都有不同程度的影响,渗透系数越小,液态溶质运移速度越慢；单位贮存量越小,液态溶质运移速度越快；反之亦然. |
| 英文摘要: |
| For the sake of the seepage problem of liquid solute in soil,a mathematical model has been used to describe the two-dimensional unsteady seepage conformed to Darcy’s law,and the finite volume method is applied to do numerical solution of the given model. By these work,we can get different osmotic coefficients of the given seepage field,head under unit of storage capacity and change rule of seepage discharge and stimulate percolation process of the liquid solute in soil.Based on visualization processing and comparative analysis of the computed result,we find that both permeability coefficient and unit of storage capacity have a different degree of influence on liquid solute migration in soil.And,we also conclude that the smaller osmotic coefficient it is,the slower speed of the liquid solute transports;the smaller unit of storage capacity it is,the faster speed of the liquid solute transports and vice versa. |
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