摘要
多喷头支管设计的常规方法是采用克里斯琴(Christiensen)导出的等流量、等出流间距、等管径的多孔系数法,但实际喷灌工程中,各喷头流量并不相等,间距也可能不同。针对这个问题,本文通过建立支管模型,提出了支管内各管段通用的水力计算方程式,可求解出精确的支管流量和水头。本方法用于多种管径,出流间距可不相等的管段组成的喷灌支管设计。
The conventional method for designing sprinkler lateral with many sprinklers is multi-outflow coefficient method derived by Christiensen which is used for designing the lateral with equal outflow rate, equidistance and equivalent diameter. In practice, however, the flow rates of sprinkilers and the spacings between sprinklers are not equivalent or the same. To counter this problem, this paper advances a universal hydraulic formula for every sections of lateral through setting up a lateral model, so as to find the precise flow rate and water head in lateral. This procedure can be used for designing of sprinkler lateral with different spacings between outflow point and diameter.
出处
《喷灌技术》
北大核心
1992年第4期14-17,63,共4页
关键词
支管
设计
喷灌
lateral, optimization design
