乔灌篱沟蓄沟道土壤水分运动数值模拟  

Numerical Simulation for Soil Water Movement of Gutter under Water Conservation in Arbor-shrub-hedge-gutter

作　　者：郭向红[1] 孙西欢[1] 马娟娟[1] 

机构地区：[1]太原理工大学水利科学与工程学院,太原030024

出　　处：《农业机械学报》2009年第7期93-97,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50379031);山西省科技攻关计划资助项目(2007031069);山西省研究生创新项目(20081041)

摘　　要：在分析乔灌篱沟蓄沟道布置和水分运动特点的基础上,建立了乔灌篱沟蓄沟道二维非饱和土壤水分运动模型,采用Galerkin有限单元法对方程进行数值求解。室内验证试验结果表明,土壤含水率和湿润锋的模型计算值与实测值吻合较好,说明乔灌篱沟蓄沟道土壤水分运动模型正确,采用有限元法求解可行。2-D mathematic model of unsaturated soil moisture movement of gutter on the condition of water conservation in arbor-shrub-hedge-gutter was established based on the theory of soil water dynamics and the characteristics of soil moisture movement. The finite element method was used to solve it. A series of indoor experiments were conducted to verify the model. The computational results derived from the model of water front and soil moisture content were in accordance with the experimental results. It indicated that the mathematic model of soil water movement is correct and solving of the model with finite element method is feasible.

关 键 词：乔灌篱沟蓄 土壤水分运动 有限元 数值模拟 

分 类 号：S152.72[农业科学—土壤学]