| 宽顶堰平板闸门闸孔出流水力计算的实验研究 |
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| 引用本文： | 叶云涛,何建京.宽顶堰平板闸门闸孔出流水力计算的实验研究[J].水利与建筑工程学报,2013(2):138-141. |
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| 作者姓名： | 叶云涛 何建京 |
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| 作者单位： | 1. 河海大学 水利水电学院,江苏 南京,210098
2. 河海大学 力学与材料学院,江苏 南京,210098 |
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| 摘 要： | 在水闸运行中经常会遇到各种实际问题,如准确计算下泄流量、流态判别、确定已知泄流量下的上下游水位等。为使平板闸门过闸流量计算准确又方便,根据平板闸门下宽顶堰模型实测数据,对闸孔出流的不同流态进行分析,提出了闸孔淹没出流的简易判别方法并用数学回归分析得到精度较高的自由出流、淹没出流流量计算公式,可供工程水力计算参考。
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| 关 键 词： | 宽顶堰 自由出流 淹没出流 流量系数 |
Experimental Study on Hydraulic Calculation of Discharge under Plane Gate on Broad-crested Weir |
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| YE Yun-tao
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HE Jian-jing.Experimental Study on Hydraulic Calculation of Discharge under Plane Gate on Broad-crested Weir[J].Journal of Water Resources Architectural Engineering,2013(2):138-141. |
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| Authors: | YE Yun-tao HE Jian-jing |
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| Affiliation: | 1.College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing,Jiangsu 210098,China;2.College of Mechanics and Materials,Hohai University,Nanjing,Jiangsu 210098,China) |
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| Abstract: | There are various practical problems encountered in sluice running,such as the accurate calculation of discharge,flow pattern discrimination,determining the upstream and downstream water level and so on.To calculate discharge accurately and easily,the different flow patterns of gate orifice flow are analyzed here based on the experimental data measured from the discharge under the plane gate on broad-crested weir.Through the experiment analysis,a method is advanced to distinguish the flow pattern between free outflow and submerged outflow,and two high-precision formulas are developed for calculating the discharge of free outflow and submerged outflow,which can provide references for engineering calculations. |
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| Keywords: | broad-crested weir free outflow submerged outflow discharge coefficient |
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