IMECH-IR  > 流固耦合系统力学重点实验室
坡面薄层水流的流速分布特征分析
安翼; 刘青泉
Source Publication第十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源教授诞辰 110 周年纪念大会文集
2012
Conference Name十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源教授诞辰 110 周年纪念大会
Conference Date2012年8月25日至8月30日
Conference Place中国无锡
Abstract坡面薄层水流水深浅,受地表形态的影响显著,其流动过程十分复杂。通过分析现有实验数据,使用反问题分析方法,重点探讨薄层水流的断面流速分布特征,得到了黏性力主导条件下,光滑或中小粗糙度坡面上的薄层水流速度分布特征规律,并比较了其与明渠流速分布对数律的异同。; Abstract:The overland sheet flow, of which water depth is comparable with slope microrelief, is so complex that its foundation of flow characteristics has not been well established. In this paper, the velocity profile characteristics of the sheet flow are carefully examined with inverse problem method based on collected experimental data. The logarithmic velocity distribution law from open channel flow is found also works in some extent for sheet flow on smooth or low-roughness slopes, in which occasion the viscous stress dominates the flow. The deference between velocity distribution laws of the sheet flow and open channel is also analyzed.
Key words:Shallow overland-flow; velocity distribution; Smooth bed; Rough bed; Logarithmic distribution
Keyword薄层水流 流速分布 光滑床面 粗糙床面 对数分布律
DepartmentLMFS水环境流体力学(LEM)
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Indexed By其他
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45676
Collection流固耦合系统力学重点实验室
Corresponding Author刘青泉
Recommended Citation
GB/T 7714
安翼,刘青泉. 坡面薄层水流的流速分布特征分析[C]. 北京:海洋出版社,2012.
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