Velocity distribution in alluvial channel flow

Abstract

The velocity distribution equations which have been developed recently on the basis of data of sedimentladen flow over a rigid plane bed are checked with experimental data of flow over alluvial beds of sediment mixtures and found to be unsatisfactory for this case. Making use of the present set of data and the data collected by other investigators, a two-layer model of velocity distribution over alluvial beds has been developed. The model shows good agreement with field measurements of the Rhine and the Middle Rio Grande.