Sediment transport in channels: an alternative approach

The relationship of sediment transport to fluid flow is considered. Physical reasoning leads to dimensionless groupings of the variables which are different for coarse sediment and for fine sediment, because of dissimilar modes of transport. This concept provides a basis for a new analysis of data from flume experiments, and a method for dealing with transitional sizes of sediment is suggested. The analysis supports the theory put forward, and tentative predictive equations are derived which relate tidal bed sediment flux to measurable properties of flow.