Abstract 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.
Sai-hua HUANG, Zhi-lin SUN, Dan XU, Shan-shan XIA. Vertical distribution of sediment concentration. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(11): 1560-1566.