摘要
在微灌水力设计中,坡地上的田块多是不规则的,因而管道的沿程出流量的分布也是不规则的。过去对于这种类型的管道水力设计方法研究甚少。为便于设计,有必要对其水力参数进行简化计算,寻求一套较系统的等距、非等出流的水力设计方法。
The discharge are non- uniform in pipelines due to the irregular shape of sloping fields, few - studies werethen carried out on hydraulic design method of this kind of pipelines. It is necessary to simplify calculation of hydraulicparametes and to seek a set of systematic design method for the same spaces of outlets with various discharges.
出处
《节水灌溉》
北大核心
1998年第2期13-15,共3页
Water Saving Irrigation
关键词
流量
灌溉
梯形分布
变径
管道水力设计
微灌
discharge,ladder-shaped distribution,reducing pipe,hydraulic design of pipeline