| 微灌灌水器设计工作水头优选的研究 |
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| 引用本文： | 张志澎,冯素珍,田春元.微灌灌水器设计工作水头优选的研究[J].内蒙古农业大学学报(自然科学版),1996(1). |
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| 作者姓名： | 张志澎 冯素珍 田春元 |
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| 作者单位： | 内蒙古农牧学院水利系 |
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| 摘 要： | 微灌系统灌水器的工作水头与灌水均匀度的关系并非是“灌水器的工作水头越高,则微灌系统的灌水均匀度越高”,而是与所选灌水器的流态指数及管道的流量指数有关。本文根据灌水器工作水头与灌水均匀度的关系,以支管单元单位面积年费用最小为目标函数,以田间管网允许水头偏差及其在支、毛管上的最优分配比为约束,建立了经济上最优的灌水器设计工作水头模型,并以此为依据确定出经济合理的支、毛管管径。
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| 关 键 词： | 微灌系统 灌水器 工作水头 |
The Study of the Optimal Microirrigating Emitter's Operating Head |
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| Zhang Zhishu, Feng Suzhen, Tian Chunyuan,.The Study of the Optimal Microirrigating Emitter's Operating Head[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),1996(1). |
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| Authors: | Zhang Zhishu Feng Suzhen Tian Chunyuan |
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| Abstract: | The ralation of the emitter' s operating head of microirrigation with the ap-plication uniformity is not",the higher the emitter's operating head,the higher the applica-tion unifority'.It ralates with the flow index of the emitter and the discharge index of thepipe. This paper develpos an optimal economical model of the emitter's operatting head,based on the ralatinship abovementioiied.the objective function is the minmum expensesper year of the maniford tunt and the comnstraint is the optimal distributing proportion ofthe limitted water hetld deviation in the maniford and the lif1eral. |
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| Keywords: | microirrigating system emitter operating head |
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