流量呈梯形分布的微灌变径管道水力设计方法

A Hydraulic Design Method of Reducing Pipe with Ladder-Shaped Flow Rate Distribution in Mini-irrigation

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.