Author(s): Shu-Qing Yang

Linked Author(s):

Keywords:

Abstract: A new and user-friendly formula for the computation of total bed material load in alluvial channels under equilibrium transport conditions has been developed based on the stream power concept and diffusion theory. The advantages of this formula include: high accuracy in prediction, the ease of computation and the wide range of application. The total sediment concentration is computed directly using the variables of flow depth, mean flow velocity, energy slope, median sediment size and sand density, and water temperature. The verification for the new equation uses over 3500 published total-load data from flume studies, and the over-all results show that 84% of the data are predicted within 0.5 and 2 times the measured values. This is an encouraging score considering the large database and the range of variables covered.

DOI: https://doi.org/10.1080/00221680509500107

Year: 2005