Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel

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 > 山地灾害与地表过程重点实验室

	Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel
	Hu, Kaiheng1,2 ; Tian, Mi 1,2,3; Li, Yong1,2
刊名	JOURNAL OF HYDRAULIC ENGINEERING-ASCE
	2013
卷号	139 期号:1 页码:65-69
关键词	Debris flows Manning resistance coefficient Mean flow velocity Flow width
ISSN号	0733-9429
通讯作者	Hu, KH
英文摘要	Debris flow in a wide open downstream channel has a significant transverse velocity component that strongly influences its mean longitudinal velocity. Investigation of observation data of debris-flow surges at Jiangjia Ravine in China shows the dependency of Manning resistance of debris flows on the ratio of flow width to depth. Regression fit reveals a power function relationship between the Manning resistance coefficient and the width-to-depth ratio. This derives a new formula of mean velocity incorporating the influence of flow width. The result indicates that the width-to-depth ratio can be viewed as a kind of shape roughness analogous to grain roughness in the Darcy-Weisbach resistance coefficient expression. DOI: 10.1061/(ASCE)HY.1943-7900.0000648. (C) 2013 American Society of Civil Engineers.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Civil ; Engineering, Mechanical ; Water Resources
研究领域[WOS]	Engineering ; Water Resources
收录类别	SCI
语种	英语
WOS记录号	WOS:000313361400009
公开日期	2013-06-24
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5467]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Chinese Acad Sci, Grad Univ, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Hu, Kaiheng,Tian, Mi,Li, Yong. Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel[J]. JOURNAL OF HYDRAULIC ENGINEERING-ASCE,2013,139(1):65-69.
APA	Hu, Kaiheng,Tian, Mi,&Li, Yong.(2013).Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel.JOURNAL OF HYDRAULIC ENGINEERING-ASCE,139(1),65-69.
MLA	Hu, Kaiheng,et al."Influence of Flow Width on Mean Velocity of Debris Flows in Wide Open Channel".JOURNAL OF HYDRAULIC ENGINEERING-ASCE 139.1(2013):65-69.