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CLC number: TV14

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Received: 2007-12-07

Revision Accepted: 2008-05-16

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.11 P.1560~1566


Vertical distribution of sediment concentration

Author(s):  Sai-hua HUANG, Zhi-lin SUN, Dan XU, Shan-shan XIA

Affiliation(s):  Department of Hydraulic and Ocean Engineering, Zhejiang University, Hangzhou 310058, China

Corresponding email(s):   ivyhuang21@163.com, oceansun@zju.edu.cn

Key Words:  Sediment concentration, Vertical distribution, Suspended load, Sediment discharge

Sai-hua HUANG, Zhi-lin SUN, Dan XU, Shan-shan XIA. Vertical distribution of sediment concentration[J]. Journal of Zhejiang University Science A, 2008, 9(11): 1560~1566.

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journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%A Zhi-lin SUN
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%DOI 10.1631/jzus.A0720106

T1 - Vertical distribution of sediment concentration
A1 - Sai-hua HUANG
A1 - Zhi-lin SUN
A1 - Dan XU
A1 - Shan-shan XIA
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 11
SP - 1560
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%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0720106

A simple formula is proposed to predict the vertical distribution of a suspended load concentration in a 2D steady turbulent flow. The proposed formula significantly improves the well-known Rouse formula where sediment concentration has an infinitely large value at the channel bottom and a zero value at the water surface. Based on this formula and the logarithmic velocity profile, a theoretical elementary function for the transport rate of a suspended load is developed. This equation improves the Einstein equation in which the unit-width suspended sediment discharge must be solved by numerical integration and a contradiction between the lower limit of the integral and that of velocity distribution exists.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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