Hydraulic Modeling of Kangsabati Main Canal for Performance Assessment
Hydraulic Modeling of Kangsabati Main Canal for Performance Assessment
复制标题
用于性能评估的康萨巴蒂干渠水力模型
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
N. Raghuwanshi
中科院分区：
文献类型：
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作者：
A. Mishra;A. Anand;Rajendra Singh;N. Raghuwanshi
意识到需要通过绩效评估改进干渠系统的运行和管理，印度西孟加拉邦康萨巴蒂项目右岸干渠系统应用了Mike 11水力模型。运河系统全长137公里，输水面积约88,867公顷。该模型在1997年被校准为15天的灌溉期，并在1995年、1996年和1997年分别验证了一个灌溉期。校准后的参数，即全局电阻数和栅极收缩系数，分别为50和0.63，而局部电阻数在15到60之间。在定标和验证期内，头部和中游的每日观测流量和模拟流量基本一致。然而，在尾部，发现了一些不匹配的情况。这些结果也得到了统计检验的支持。此外，还使用性能比(观测流量与预定流量之比)作为指标。
Realizing the need for improvements in the operation and management of the main canal system through performance assessment, the MIKE 11 hydraulic model was applied to the Right Bank Main Canal system of the Kangsabati project, West Bengal, India. The canal system has a length of 137 km with a delivery area of about 88,867 ha. The model was calibrated for a 15-day irrigation period during 1997 and validated for one irrigation period each in 1995, 1996, and 1997. The calibrated parameters, which are the global resistance number and gate contraction coefficient, are found to be 50 and 0.63, respectively, whereas local resistance numbers range between 15 and 60. Daily observed and simulated flows are in close agreement for the head and middle reaches during calibration and validation periods. However, at the tail reach some mismatch is found. These results are also supported by the statistical tests. Further, a performance ratio (a ratio of the observed flow rate to the scheduled flow rate) is used as an ind...