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.
出处
《宁夏工程技术》
CAS
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)
关键词
膜上灌
入渗规律
水流运动特性
film hole irrigation
infiltration law
water flow motion characteristics