摘要
管道灌溉是常用的节水灌溉方式之一，在管道输水灌溉系统中，管网投资约占总投资的60%-70% ，直接影响工程造价。因此加强对管网优化设计的研究，找出一种简单高效的优化方法，对提高管道输水灌溉工程设计水平，降低运行费用具有重要意义。在现有管网优化设计模型的基础上，以管网年费用最小为目标，建立了管道输水灌溉管网优化设计模型，并采用界限流量法求解，推导出了相邻管径的界限流量的计算公式。
Pipe irrigation is one of the common-used irrigation methods. In the pipe-irrigation system, the proportion of the pipe investment takes 60% -70%, which directly affects the project cost. Therefore, it＇s significant to obtain an easy and highly efficient optimal design, in order to enhance the design level of the pipe-irrigation. Based on the current pipe optimal design model, taking the minimum annual cost of pipes as the goal, the optimal design model of pipe-irrigation was set up. The solution was processed by using flow bounds approach. And the computational formula of the flow bounds of the adjacent pipe diameter was deduced.
出处
《安徽农业科学》
CAS
北大核心
2009年第25期12195-12196,共2页
Journal of Anhui Agricultural Sciences
关键词
管道输水灌溉
优化设计
界限流量法
管径
Pipe irrigation
Optimal design
Flow bounds approach
Pipe diameter
