挟沙水流卡门常数的影响因素

he von Karman constant of sediment-laden flows is one of the important parameters reflecting the influence of sediment movement on the flow structure. In this paper, the formulas of the von Karman constant, and the influence factors of the von Karman constant are reviewed and discussed for sediment-laden flows. Based on the dimensional analysis of the influence factors, the relation between the von Karman constant and the non-dimensional influence parameters is derived. The formula of the von Karman constant is validated by adjusting it to fit the experimental data. Some other experimental data, and the field data of the Yangtze River and the Yellow River are utilized to verify the formula of the von Karman constant. It shows that the formula fits all the data well.