Modification to the Hardisty equation, regarding the relationship between sediment transport rate and particle size

IOCAS-IR > 海洋地质与环境重点实验室

	Modification to the Hardisty equation, regarding the relationship between sediment transport rate and particle size
	Wang, YP ; Gao, S
	2001
发表期刊	JOURNAL OF SEDIMENTARY RESEARCH
ISSN	1073-130X
卷号	71 期号:1 页码:118-121
文章类型	Article
摘要	Bagnold-type bed-load equations are widely used for the determination of sediment transport rate in marine environments. The accuracy of these equations depends upon the definition of the coefficient k(1) in the equations, which is a function of particle size. Hardisty (1983) has attempted to establish the relationship between k(1) and particle size, but there is an error in his analytical result. Our reanalysis of the original flume data results in new formulae for the coefficient. Furthermore, we found that the k(1) values should be derived using u(1) and u(1cr) data; the use of the vertical mean velocity in flumes to replace u(1) will lead to considerably higher k(1) values and overestimation of sediment transport rates.; Bagnold-type bed-load equations are widely used for the determination of sediment transport rate in marine environments. The accuracy of these equations depends upon the definition of the coefficient k(1) in the equations, which is a function of particle size. Hardisty (1983) has attempted to establish the relationship between k(1) and particle size, but there is an error in his analytical result. Our reanalysis of the original flume data results in new formulae for the coefficient. Furthermore, we found that the k(1) values should be derived using u(1) and u(1cr) data; the use of the vertical mean velocity in flumes to replace u(1) will lead to considerably higher k(1) values and overestimation of sediment transport rates.
关键词	Sand Transport Currents Shelf
学科领域	Geology
收录类别	SCI
语种	英语
WOS记录号	WOS:000166996600012
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3820
专题	海洋地质与环境重点实验室
作者单位	1.Nanjing Univ, Dept Geoocean Sci, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, YP,Gao, S. Modification to the Hardisty equation, regarding the relationship between sediment transport rate and particle size[J]. JOURNAL OF SEDIMENTARY RESEARCH,2001,71(1):118-121.
APA	Wang, YP,&Gao, S.(2001).Modification to the Hardisty equation, regarding the relationship between sediment transport rate and particle size.JOURNAL OF SEDIMENTARY RESEARCH,71(1),118-121.
MLA	Wang, YP,et al."Modification to the Hardisty equation, regarding the relationship between sediment transport rate and particle size".JOURNAL OF SEDIMENTARY RESEARCH 71.1(2001):118-121.

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