| 坡地允许喷灌强度研究 |
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| 引用本文： | 罗金耀,王富庆,邱元锋.坡地允许喷灌强度研究[J].水动力学研究与进展(A辑),2002,17(6):739-747. |
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| 作者姓名： | 罗金耀 王富庆 邱元锋 |
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| 作者单位： | 武汉大学水利水电学院,湖北武汉,430072 |
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| 基金项目： | 国家自然科学基金项目的部分成果 (5 93794 0 7) |
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| 摘 要： | 本文在分析坡地降雨入渗机理的基础上，根据二维土壤水分运动方程，建立均匀坡地上不同土壤及其边界条件的均匀灌水入渗模型，研究模型的有限元数值解方法，得到了土壤非饱和情况下，坡地喷灌强度不需折减的结论。通过数值计算和实验验证，所得实验结果与数值分析结果基本吻合。
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| 关 键 词： | 坡地 喷灌强度 有限元 数值模拟 |
| 文章编号： | 1000-4874(2002)06-0739-09 |
Study on efficiency of sprinkler irrigation for sloping fields |
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| LUO Jin yao,WANG Fu qing,QIU Yuan feng.Study on efficiency of sprinkler irrigation for sloping fields[J].Journal of Hydrodynamics,2002,17(6):739-747. |
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| Authors: | LUO Jin yao WANG Fu qing QIU Yuan feng |
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| Abstract: | Based on analyzing the mechanism of percolation for sprinkler irrigation into sloping field, a uniform irrigation and percolation model for different soils and boundaries was proposed and the finite element equations were derived and solved. Numerical simulation and experimental studies show that the results are in agreement with each other. The elementary conclusion is that for unsaturated soils of sloping fields the application ratio of sprinkler irrigation need not to be reduced, and the methods presental herein are applicable. |
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| Keywords: | sloping field sprinkler irrigation application ratio finite element numerical solution |
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