膜上灌入渗规律及水流运动特性试验研究  

Experimental study on infiltration law and water flow motion characteristics of film hole irrigation

作　　者：李应海[1] 田军仓[1] 马波[1] 

机构地区：[1]宁夏大学土木与水利工程学院,宁夏银川750021

出　　处：《宁夏工程技术》2005年第4期351-353,共3页Ningxia Engineering Technology

基　　金：宁夏大学青年科学研究基金资助项目(QN0439)

摘　　要：通过对宁夏引黄灌区膜上灌入渗规律及水流运动特性的试验研究,建立了膜上灌入渗速度与时间关系的数学表达式,即h=1.1170t0.8364,v=0.9343t-0.1636;提出膜上灌水流推进距离与时间呈幂函数规律,即t=0.1564 L1.2936,可供膜上灌技术研究工作者参考.This paper analyzed the infiltration law and water flow motion characteristics of film hole irrigation in Ningxia Diversion Yellow River Irrigation Area, the formula of film hole irrigation were established, i. e, h = 1.117 0 t^0. 836 4, v = 0. 934 3 t ^- 0. 163 6 ; at the same time, the distance and time of water flow advance of film hole irrigation accorded with power function,i, e, t =0. 1564 L^1.293 6 It may be referred to by film hole irrigation staff.

关 键 词：膜上灌 入渗规律 水流运动特性 

分 类 号：S274[农业科学—农业水土工程]