| 覆膜侧渗沟灌二维入渗数值模拟研究 |
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| 引用本文： | 张新燕,蔡焕杰.覆膜侧渗沟灌二维入渗数值模拟研究[J].干旱地区农业研究,2008,26(6):87-90. |
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| 作者姓名： | 张新燕 蔡焕杰 |
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| 作者单位： | 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，西北农林科技大学校科研和教改项目 |
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| 摘 要： | 根据覆膜侧渗沟灌的入渗特性,利用修正Richards方程对其水分入渗过程进行数值模拟研究,结合初始条件、边界条件和相关参数采用Galerkin有限元法进行了数值求解。经验证,所建模型具有较好的稳定性和合理性,与实际结果具有较好的一致性,且模型数值计算原理简单。为进一步研究覆膜侧渗沟灌入渗特性和地表水流运移特性及灌水技术要素优化、系统管理设计奠定了基础。
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| 关 键 词： | 覆膜侧渗沟灌 二维入渗 数值模拟 |
Numerical simulating study on two-dimension infiltration of Film-covering Bed Furrow Irrigation(FBFI) |
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| ZHANG Xinyan,CAI Huanjie.Numerical simulating study on two-dimension infiltration of Film-covering Bed Furrow Irrigation(FBFI)[J].Agricultural Research in the Arid Areas,2008,26(6):87-90. |
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| Authors: | ZHANG Xinyan CAI Huanjie |
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| Abstract: | Based on the infiltrating character of FBFI,mathematical models are developed to simulate infiltrating of FBFI by the use of the modified Richards' equation.Combined with initial condition,boundary condition and relative parameter,numerical solution is obtained by Galerkin finite element method.The founded model is steadier and reasonable and well agreed with the data obtained from field irrigation experiment by validating.It establishes the base for futther studying infiltration characteristic and surface flow moving characteristic,irrigation technical parameter optimization,system management and design,etc. |
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| Keywords: | Film-covering Bed Furrow Irrigation(FBFI) two-dimension infiltration numerical simulating |
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