| 曹继文,陈惠泉,贺益英.明渠岸边横向取水口水力特性的试验研究[J].水利学报,2003,34(10):0032-0037 |
| 明渠岸边横向取水口水力特性的试验研究 |
| Experimental study on hydraulic characteristics of lateral intake in open channel |
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| DOI： |
| 中文关键词: 明渠 横向取水口 水力特性 |
| 英文关键词: open channel lateral intake hydraulic characteristics experimental study |
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| 中文摘要: |
| 对明渠岸边横向直角取水口的水力特性进行了试验研究。在试验室的水槽中，通过三维超声波流速仪(ADV)测得了取水口的流速数据，试验中针对不同的分流流速比，测取了主水槽的表底层分流宽度、进水口门流速场以及紊动能k和雷诺应力的分布。试验结果显示在取水口附近的水流结构具有明显的三维特性。取水口断面的流速分布与正常的明渠流速分布不同，其断面的最大流速常常在底层。 |
| 英文摘要: |
| The hydraulic characteristics of lateral intake in open channel are studied experimentally in a flume. The 3-D acoustic Doppler velocimeter (ADV) is applied to measure the velocity distributions in the vicinity of intake and in the intake channel. The flow fields and distributions of turbulent energy k and Reynolds stress for different ratio of main channel velocity to intake velocity are obtained. It is found that the flow field possesses the characteristics of 3-D flow and the velocity distributions in intake channel is not the same as that in normal open channel. The maximum velocity always exists at the bottom of the flow. |
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