IAHR Document Library

« Back to Library Homepage « Journal of Hydraulic Research 1995 Issue 5

Non-uniform sediment transport: dynamics of the active layer

Author(s): A. Armanini

Linked Author(s):


Abstract: In the paper die concept of active (or mixing) layer, on which almost all the approaches of non-uniform sediment transport in rivers are based, is reviewed. Accounting for bed level fluctuations, mass balance equations are treated in the same way as Reynolds decomposition for turbulent motion: instantaneous variables are decomposed in the average, over a large number of realizations, and in the fluctuating pan. The resulting equations are correct from a theoretical point of view and have precise physical meanings. The theoretical findings are compared to some experimental data by Ribberink [1987].


Year: 1995

Copyright © 2023 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions