• 论文 •

### 地面灌溉节水技术研究——沟灌水流运动的数值模拟及其应用

1. 1. 清华大学水利工程系;
2. 甘肃省水利厅水科所
• 出版日期:1989-12-25 发布日期:1989-12-25

### STUDIES ON WATER-SAVING TECHNIQUES OF SURFACE IRRIGATION——NUMERICAL SIMULATION OF THE FURROW IRRIGATION FLOW AND ITS APPLICATION

Lu Jingxuan1, Liu Tanren1, Hui Sibo1, Zhao Wenyuan2, Ha Hong2

1. 1. Hydraulic Engineering Department of Qinghua University;
2. Scientific Research Institute, Water Conservancy Department of Gansu Province
• Online:1989-12-25 Published:1989-12-25

Abstract: A hydraulic mathematical model of furrow. irrigation with free draining end boundary was established by using the kinematic-wave method in this paper, and a good agreement between the model result and the field test was found. The established model shows good calculation stability, high speed, and small storage. It can be used in microcomputer. In this study, we adopt a new concept that the irrigating water quota is used to control the amount of irrigation water and that the uniform coefficient is used to evaluate the irrigation result. At the same time, we put forth a trial and error method to study the way to determine the rational combination of technical parameters for furrow irrigation under the conditions of free draining end boundary and blocked end boundary.