| Cite this article: | 胡亚卓,拾兵.三角形迷宫堰综合流量系数研究[J].灌溉排水学报,0,():-. |
| huyazhuo,shibing.三角形迷宫堰综合流量系数研究[J].灌溉排水学报,0,():-. |
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| Research on Comprehensive Discharge Coefficient of Triangular Labyrinth Weir |
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huyazhuo, shibing
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Ocean University of China
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| Abstract: |
| As a relatively new type of weir, the triangular labyrinth weir plays the role of water storage,water retention and flood discharge in the course of river treatment. Application in the river course can effectively improve the discharge efficiency and increase the discharge capacity.At present,there are few studies on the triangular labyrinth weir,and no effective calculation formula has been found for its discharge flow in actual engineering design. Combined with engineering practice,and on the basis of predecessors,its hydraulic characteristic of triangular labyrinth weirs with different heights and different number of houses as well as an apex angle of 60 degrees is studied.Using the height of the weir and the number of houses as parameters, three sets of triangular labyrinth weir hydraulic model experiments with 9 schemes of 3 weir heights are considered.The research results show that the comprehensive discharge coefficient of the triangular labyrinth weir is related to factors such as the water depth H at the top of the weir, the height P of the weir, the expansion length L of the labyrinth weir, and the width w of the single chamber. Combining the experimental data, the calculation formulas for the comprehensive discharge coefficient of the triangular labyrinth weir with H/P,w/P,L/P and other factors are obtained through linear fitting. |
| Key words: triangular labyrinth weir;discharge coefficient;influencing factors;experimental research |
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