| 一维土壤入渗特性数值模拟 |
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| 引用本文： | 聂卫波,马孝义,王术礼.一维土壤入渗特性数值模拟[J].灌溉排水学报,2009,28(3). |
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| 作者姓名： | 聂卫波 马孝义 王术礼 |
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| 作者单位： | 西北农林科技大学旱区农业水土工程教育部重点实验室,陕西,杨凌,712100
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| 基金项目： | 国家自然科学基金，国家科技支撑计划，西北农林科技大学青年学术骨干计划项目 |
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| 摘 要： | 以非饱和土壤水分运动理论基础,利用Richards模型模拟不同实验处理下的一维垂直入渗过程,采用SWMS-1D软件对模型求解,用试验资料对模拟的累积入渗量与湿润锋运移距离结果进行了对比验证,二者基本吻合。对模拟结果分析得出,土壤质地和容重对一维垂直入渗累积入渗量、入渗速率和湿润锋运移距离影响较大,土壤初始含水率和入渗水头对其影响较小;并分别建立了不同土壤质地下的累积入渗量、入渗速率和湿润锋运移距离与入渗历时单参数幂函数计算式。
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| 关 键 词： | 一维垂直入渗 入渗特性 数值模拟 模型 |
Numerical Simulation of One-dimensional Soil Infiltration Characteristic |
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| NIE Wei-bo,MA Xiao-yi,WANG Shu-li.Numerical Simulation of One-dimensional Soil Infiltration Characteristic[J].Journal of Irrigation and Drainage,2009,28(3). |
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| Authors: | NIE Wei-bo MA Xiao-yi WANG Shu-li |
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| Institution: | Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education;Yangling 712100;China |
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| Abstract: | Based on unsaturated soil water movement theory,Richards equation be resolved with SWMS-1D software for simulating one-dimensional(1D) soil infiltration under different experiment initial condition.The simulation results of accumulation infiltration quantity and wetting soil movement migration distance were verified by laboratory experiments and it's agreed well with measurement values.It shown that the Richards equation can be studied infiltration characteristic of 1D vertical infiltration.The simulation r... |
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| Keywords: | one-dimensional vertical infiltration infiltration characteristic numerical simulation model |
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