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| DOI：10.13522/j.cnki.ggps. 2023461 |
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| Study on Improvement of Empirical Formula of Channel Water Use Coefficient |
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XUE Tianzhu, WANG Ruxue, BAI Jing
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Ningxia Water Conservancy and Hydropower Surveying and Design Research Institute Co., Ltd., Yinchuan 750004, China
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| Abstract: |
| By analyzing the relationship between channel length and channel water use coefficient, it is found that the Kostiakov formula has obvious theoretical defects: for a homogeneous channel, the water use coefficient of the whole channel should be equal to the product of the water use coefficient of the section, but the results showed that they two were not equal. In view of this paper, we discussed the relationship between channel water use coefficient and channel length, deduced a new calculation formula, and applied it to the design of Guhai pumping project. The practice showed that the physical meaning of the improved formula is clear, the calculation results were accurate, and it had certain practical value. |
| Key words: channel water use coefficient; the Kostiakov formula; rate of loss of water per kilometer; Guhai pumping project |
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