| 畦田灌溉水流演进计算简化模型研究 |
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| 引用本文： | 周振民,刘月.畦田灌溉水流演进计算简化模型研究[J].灌溉排水学报,2005,24(2):23-26. |
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| 作者姓名： | 周振民 刘月 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450008;华北水利水电学院,河南,郑州,450008 |
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| 基金项目： | 水利部水利发展"十一五"规划重大课题研究项目 |
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| 摘 要： | 在对水量平衡模型进行修改的基础上,结合零惯量运动方程,以水量平衡方程为基础,对畦灌水流演进模型的结构进行了研究。应用无因次系统模型,求得了模型的显式和隐式解。该模型可以用来计算畦灌水流演进距离。对山东省陈垓引黄灌区畦灌水流演进计算结果表明,该模型比以往使用的模型简单,计算精度与较复杂的零惯量模型的计算精度相当。模型计算不需编程,可以用手算完成全部计算过程,解决了传统的水量平衡模型无法解决的问题。
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| 关 键 词： | 畦田灌溉 水流演进模型 水量平衡模型 |
| 文章编号： | 1000-646X(2005)02-0023-04 |
| 修稿时间： | 2004年12月10 |
Simplified Water Advance Calculation Model for Border Irrigation |
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| ZHOU Zhen-min,LIU Yue.Simplified Water Advance Calculation Model for Border Irrigation[J].Journal of Irrigation and Drainage,2005,24(2):23-26. |
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| Authors: | ZHOU Zhen-min LIU Yue |
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| Abstract: | . The explicit volume balance model was modified and combined with the motion equation of the zero inertia to predict water advance in border irrigation. A system of dimensionless notation was used to obtain implicit and explicit solutions of the model. It shows that through application in Chengai Irrigation District of Shandong Province, this model is simpler than previously used models, yet maintains a high degree of accuracy. The proposed model requires no programming and can easily be performed using a hand calculator. The outcomes of the proposed model were comparable to those of the more sophisticated zero inertia model. Using well-documented field examples, the proposed model provided acceptable results, implying that it could be used in practice to determine the advance distance with insignificant errors. In addition, the model is applicable to conditions under which the traditional volume balance model fails. |
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| Keywords: | border irrigation water advance model water balance model |
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