| 矩形薄壁堰贴壁堰流试验研究 |
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| 引用本文： | 彭儒武,李保栋,王青,吴新岭.矩形薄壁堰贴壁堰流试验研究[J].山东农业大学学报(自然科学版),2002,33(2):197-202. |
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| 作者姓名： | 彭儒武 李保栋 王青 吴新岭 |
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| 作者单位： | 1. 山东农业大学,水利土木工程学院,山东,泰安,271000
2. 文登市水利局坤龙水库,文登,264400 |
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| 摘 要： | 矩形薄壁堰是一种重要的量水工具，使用中发现，当小流量通过薄壁堰时，易发生水流贴壁现象。通过反复的现场放水试验研究，发现矩形薄壁堰发生贴壁堰流时的水位流量关系与正常堰流时的水位流量关系不一致，相同水位时贴壁流的过流能力大。本文提出了防止贴壁流现象发生的方法和措施。以期引起使用者的注意，在应用矩形薄壁堰时应注意避免水流贴壁现象的发生，以免影响测流的准确性。
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| 关 键 词： | 矩形薄壁堰 贴壁堰流 水位流量 水头 试验 量水工具 水流贴壁 |
| 文章编号： | 1000-2324(2002)02-0197-06 |
| 修稿时间： | 2001年7月13日 |
EXPERIMENTAL RESEARCH ON THE WEIR FLOW PRESSING THE WALL FOR THE RECTANGLE THIN- WALL WEIR |
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| PENG Ru-wu,LI Bao-dong,WANG Qing,WU Xin-ling.EXPERIMENTAL RESEARCH ON THE WEIR FLOW PRESSING THE WALL FOR THE RECTANGLE THIN- WALL WEIR[J].Journal of Shandong Agricultural University,2002,33(2):197-202. |
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| Authors: | PENG Ru-wu LI Bao-dong WANG Qing WU Xin-ling |
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| Abstract: | Rectangle thin-wall weir is a main implement to measure water flow. A phenomenon of wall pressing flow is found frequently when the small water runoff passes the thin-wall weir. A lot of on-spot experiments discovered that the water level and flow rate of wall-pressing weir flow are not accord with that of the normal weir flow. The pressing wall water flow rate is bigger than the later under same water level. The present paper put forward the control measures preventing the water from press the wall; For the more accruate flow rate measurement, the phenomenon of wall pressing flow should be avoid when using the rectangle thin-wall weir to measure the water flow rate. |
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| Keywords: | rectangle thin-wall weir wall pressing weir flow the relationship curve between water level and the discharge water head discharge |
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