IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.10
Effects of simulated submerged and rigid vegetation and grain roughness on hydraulic resistance to simulated overland flow
YANG Ping-ping; ZHANG Hui-lan; MA Chao
Corresponding AuthorZHANG Hui-lan
2017-10
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:10Pages:2042-2052
Subtype期刊论文
AbstractBetter understanding of the role of vegetation and soil on hydraulic resistance of overland flow requires quantitative partition of their interaction. In this paper, a total of 144 hydraulic flume experiments were carried out to investigate the hydraulic characteristics of overland flow. Results show that hydraulic resistance is negatively correlated with Reynolds number on non-simulated vegetated slopes, while positively on vegetated slopes. The law of composite resistance agrees with the dominant resistance, depending on simulated vegetation stem, surface roughness, and discharge. Surface roughness has greater influence on overland flow resistance than vegetation stem when unit discharge is lower than the low-limited critical discharge, while vegetation has a more obvious influence when unit discharge is higher than the upper-limited critical discharge. Combined effects of simulated vegetation and surface roughness are unequal to the sum of the individual effects through t-test, implying the limitation of using linear superposition principle in calculating overland flow resistances under combined effect of roughness elements.
KeywordHydraulic Resistance Overland Flow Vegetation Resistance Grain Resistance Flume Experiment
DOIhttps://doi.org/10.1007/s11629-016-4280-0
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19097
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.10
Recommended Citation
GB/T 7714
YANG Ping-ping,ZHANG Hui-lan,MA Chao. Effects of simulated submerged and rigid vegetation and grain roughness on hydraulic resistance to simulated overland flow[J]. Journal of Mountain Science,2017,14(10):2042-2052.
APA YANG Ping-ping,ZHANG Hui-lan,&MA Chao.(2017).Effects of simulated submerged and rigid vegetation and grain roughness on hydraulic resistance to simulated overland flow.Journal of Mountain Science,14(10),2042-2052.
MLA YANG Ping-ping,et al."Effects of simulated submerged and rigid vegetation and grain roughness on hydraulic resistance to simulated overland flow".Journal of Mountain Science 14.10(2017):2042-2052.
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