Effects of simulated submerged and rigid vegetation and grain roughness on hydraulic resistance to simulated overland flow

doi:https://doi.org/10.1007/s11629-016-4280-0

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 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
刊名	Journal of Mountain Science
	2017-10
卷号	14 期号:10 页码:2042-2052
关键词	Hydraulic Resistance Overland Flow Vegetation Resistance Grain Resistance Flume Experiment
ISSN号	1672-6316
DOI	https://doi.org/10.1007/s11629-016-4280-0
通讯作者	ZHANG Hui-lan
文献子类	期刊论文
英文摘要	Better 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/19097]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.10
推荐引用方式 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.