膜孔灌多向交汇入渗交汇界面面积特性和数学模型研究  

Study on the Infiltration Reduction Characteristic and the Mathematical Model of the Bilateral Interference Infiltration under Film Hole Irrigation

作　　者：呼唤[1] 程东娟[1] 高然[1] 费良军[2] 

机构地区：[1]河北工程大学,邯郸056021 [2]西安理工大学水资源研究所,西安710048

出　　处：《节水灌溉》2012年第4期26-29,共4页Water Saving Irrigation

基　　金：河北省自然科学基金资助项目(C2011402042;D2009000827);邯郸市科学技术研究与发展计划(0922101023-2);国家自然科学基金项目(50579064;50179030)

摘　　要：通过室内膜孔入渗试验资料,分析了膜孔多向交汇入渗量、减渗量和交汇界面面积的变化规律,研究了膜孔交汇入渗相对膜孔自由入渗的减渗特性,建立了膜孔多向交汇入渗减渗率与交汇界面面积的线性函数关系,由此建立了膜孔灌多向交汇入渗量的计算公式。以上研究成果为膜孔灌理论与技术要素的进一步研究奠定了科学基础。Based on the indoor experiment of the film hole infiltration,the change rule of the film hole bilateral infiltration and the reduction characteristic of the interference infiltration are found.The three-phase model and the infiltration reduction model of the interference infiltration are set up and the varying regularity of the interference infiltration parameter is probed.According to the data analysis,the concept of the interference infiltration reduction ratio is put forward and the calculating formula for the interference infiltration reduction ratio is established,on the basis of which the power function relation between the infiltration reduction ratio and the time is established.These research results have laid a foundation for further study of the theory and technical parameters of film hole irrigation.

关 键 词：膜孔灌溉 多向交汇入渗 交汇减渗特性 减渗率 数学模型 

分 类 号：S275.3[农业科学—农业水土工程]