| 横向槽沟内非均匀流的试验研究 |
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| 引用本文： | 夏军强,王光谦,谈广鸣.横向槽沟内非均匀流的试验研究[J].水科学进展,2000,11(2):119-125. |
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| 作者姓名： | 夏军强 王光谦 谈广鸣 |
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| 作者单位： | 1.清华大学水利水电工程系, 北京100084; |
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| 基金项目： | 国家自然科学基金委员会-水利部联合资助项目 |
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| 摘 要： | 以横向槽沟中产生的非均匀流为研究对象,通过水槽概化模型试验,在实测纵向流速分布的基础上,分析了不同来流条件及不同槽沟边坡角度下的槽沟内水面流速、槽底流速等沿程变化规律,同时还得到了计算槽沟内反向平均流速及正向平均流速的经验公式.
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| 关 键 词： | 横向槽沟 非均匀流 反向平均流速 正向平均流速 |
| 收稿时间： | 1999-01-04 |
| 修稿时间： | 1999-01-04 |
Experimental Study on the Nonuniform Flows in Lateral Trenches |
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| XIA Jun-qiang,WANG Guang-qian,TAN Guang-ming.Experimental Study on the Nonuniform Flows in Lateral Trenches[J].Advances in Water Science,2000,11(2):119-125. |
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| Authors: | XIA Jun-qiang WANG Guang-qian TAN Guang-ming |
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| Affiliation: | 1.Tsinghua University, Beijing 100084, China;2.Wuhan University of Hydraulic and Electric Engineering, Wuhan 430072, China |
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| Abstract: | In this paper,taking the nonuniform flows in lateral trenches as research object,a series of schematic model tests in flume are used to study the variance laws of surface velocity and near-bottom velocity under the condition of different incident flow conditions and slope angles of trenches.Moreover,the relevant empiric formulas for calculating the negative mean velocity and the positive mean velocity are derived. |
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| Keywords: | lateral trenches nonuniform flows negative mean velocity positive mean velocity |
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