| 坡面流水力学参数的估算 |
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| 引用本文： | 李凤英,李琳,何小武.坡面流水力学参数的估算[J].江西农业大学学报,2006,28(3):477-480. |
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| 作者姓名： | 李凤英 李琳 何小武 |
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| 作者单位： | 江西农业大学,国土资源与环境学院,江西,南昌,330045 |
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| 摘 要： | 径流流量、流速、水深以及地表坡度是水动力学特性的重要参数,且相互关系密切。采用水槽试验,研究分析了径流水深、流速与流量、坡度的相关关系。结果显示,径流流速随坡度和流量增加,呈幂函数形式递增,相关系数R2为0.92;水深随坡度的增加,呈线性递增趋势,随流量增加,呈幂函数递增趋势,其相关系数R2为0.98;对关系模型进行检验发现,它们都具有很好的估算效果。
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| 关 键 词： | 水力学参数 坡面流 估算 |
| 文章编号： | 1000-2286（2006）03-0477-04 |
| 收稿时间： | 2005-12-08 |
| 修稿时间： | 2006-03-14 |
Estimate of Hydraulic Parameters of Overland Flow |
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| LI Feng-ying,LI Lin,HE Xiao-wu.Estimate of Hydraulic Parameters of Overland Flow[J].Acta Agriculturae Universitis Jiangxiensis,2006,28(3):477-480. |
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| Authors: | LI Feng-ying LI Lin HE Xiao-wu |
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| Institution: | College of Land Resources and Environment, JAU, Nanchang 330045, China |
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| Abstract: | Relationships between flow velocity,flow depth,flow discharge,and slope gradient were simulated in a hydraulic flume.The results showed that the flow mean velocity could be well simulated by a power function of flow discharge and slope gradient.The determination coefficient R~2 was 0.92.Flow depth increased as a linear function of slope gradient,and increased as a power function of flow discharge.The determination coefficient R~2 was 0.98.The prediction models were supported by previous data. |
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| Keywords: | hydraulic parameter overland flow estimate |
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