| 长喉槽水头损失公式的修正 |
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| 引用本文： | 王长德,管光华,崔巍,范杰. 长喉槽水头损失公式的修正[J]. 武汉大学学报(工学版), 2005, 38(2): 1-5 |
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| 作者姓名： | 王长德 管光华 崔巍 范杰 |
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| 作者单位： | 武汉大学水利水电学院,湖北,武汉,430072 |
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| 基金项目： | 国家863计划(2001AA242111)，国家自然科学基金(59879016)资助项目. |
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| 摘 要： | 在实验的基础上,指出对用边界层理论计算长喉槽水头损失公式的缺陷,分析了局部水头损失产生的机理,补充了进口侧收缩水头损失的计算,对原公式进行修正提高计量精度.
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| 关 键 词： | 长喉槽 水头损失 边界层 淹没度 测流精度 |
| 文章编号： | 1671-8844(2005)02-001-05 |
| 修稿时间： | 2003-12-12 |
Modification of formula of head loss for long-throated flume |
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| WANG Chang-de,GUAN Guang-hua,CUI Wei,FAN Jie. Modification of formula of head loss for long-throated flume[J]. Engineering Journal of Wuhan University, 2005, 38(2): 1-5 |
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| Authors: | WANG Chang-de GUAN Guang-hua CUI Wei FAN Jie |
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| Abstract: | Based on an experiment of head loss for long-throated flume, the flaw of water head loss calculating formula which based on the theory of boundary layer is pointed out. And the mechanism how the energy loss happened is analyzed; and the calculation of water head loss in the inlet side shrink section is added. Finally, the formal formula is modified so as to improve the accuracy of calculation. |
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| Keywords: | long-throated flume head loss boundary layer submergence ratio accuracy of discharge measuring |
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