| 平底抛物线形无喉段量水槽试验研究 |
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| 引用本文： | 王智,朱凤书.平底抛物线形无喉段量水槽试验研究[J].水利学报,1994(7):12-23. |
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| 作者姓名： | 王智 朱凤书 |
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| 作者单位： | 西北农业大学水利系 |
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| 基金项目： | 水利部水利技术开发基金,陕西省泾惠渠管理局,陕西省水利水保厅农水处的资助 |
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| 摘 要： | 本文通过三种文丘利槽的初步研究，推荐其中适合曲线形渠道测流的平底抛物线形无喉段量水槽，与传统文丘利槽相比，它具有显著优点：１过流能力强，低水位测流精度高；２方便泥沙及漂浮物通过；３结构简单，呈良好流线形，工程量小；４具有较高的临界淹没度和可变的喉口断面收缩比。文中考虑喉口控制断面动水压力分布特征并根据喉口面积收缩比的概念，推导出槽前水深与流量计算公式：通过在Ｕ型渠道上的室内外试验和计算机仿真，给出
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| 关 键 词： | 平底抛物线 无喉段量水槽 渠道 |
Experimental study on flat parobolic throatless flume for flow measurement |
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| Wang Zhi,Zhu Fengshu,Liu Xiaoming.Experimental study on flat parobolic throatless flume for flow measurement[J].Journal of Hydraulic Engineering,1994(7):12-23. |
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| Authors: | Wang Zhi Zhu Fengshu Liu Xiaoming |
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| Affiliation: | Northwestern Agric University |
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| Abstract: | A new flat parabolic throatless flume flow measurement is developed.The experimental results show that this flume has the advantages as:low head loss,high accuracy,well streamlined,low costand high critical submerged ratio.The formela for calculating the discharge is deduced and the law of the variation of discharge coefficient is to be studied both in physical model and mathematical model.The design procedures are also presennted. |
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| Keywords: | level bottom parabolic cut-throat flume the U-typed channal the area constriction ratio the coefficient of discharge range of discharge measurement |
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