水资源与水工程学报2017，Vol.28Issue(5)：247-249,254,4.DOI:10.11705/j.issn.1672-643X.2017.05.41
倾角和压力对空气中微润管出流特性的影响
Effect of dip angle and pressure head on flow characteristics of moistube in the air
摘要
Abstract
In order to find out the effect of dip angle(the angle between moistube and horizontal plane) and pressure on the flow of moistube in the air, and to determine the relationship between moistube dip angle, pressure and the specific discharge, the discharging characteristics of moistube was studied through laboratory test under conditions of different laying angles(0°,30°,45°,60°,and 90°)and dif-ferent pressure head of 0°and 90°.The results indicate that the flow of moistube accords with Darcy's law,the specific discharge of moistube increases with the increase of pressure head and there are good linear relationship between them.Under the same water pressure head,the specific discharge of moistube increases with the increase of the angle and has a linear relationship with the inclination of sine,while the moistube angle can be converted into equivalent head.Thecalculation formula of moistube specific dis-charge including angle and pressure head is put forward.The research results can provide basis for the planning and design of the micro embellish irrigation works.关键词
微润管/出流特性/铺设倾角/压力水头/比流量Key words
moistube-irrigation/flow characteristic/dipangle/pressure head/specific discharge分类
建筑与水利引用本文复制引用
赵彤,范严伟,赵廷红,王昱..倾角和压力对空气中微润管出流特性的影响[J].水资源与水工程学报,2017,28(5):247-249,254,4.基金项目
国家自然科学基金项目(51409137) （51409137）
甘肃省高校科研项目(2016-011) （2016-011）
