Vertical distribution of sediment concentration
Vertical distribution of sediment concentration作者机构：Department of Hydraulic and Ocean Engineering Zhejiang University Hangzhou 310058 China
出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)
年 卷 期：2008年第9卷第11期
页 面：1560-1566页
核心收录：
学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程]
基 金：Project (Nos. 50079025 and 40231017) supported by the National Natural Science Foundation of China
主 题：Sediment concentration Vertical distribution Suspended load Sediment discharge
摘 要：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 ve- locity 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 contra- diction between the lower limit of the integral and that of velocity distribution exists.
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