A Formula for The Maximum Rate of Bed-load Transport on Smooth and Fixed Bed

Abstract

This paper describes a new formula for the calculation of the maximum rate of bed-load transport on smooth and fixed beds. The transport rate in unit width is expressed as the product of the volume of the moving particles on unit area of bed surface and their mean advancing velocity. Both the factors are formulated by considering, more strictly than previous studies, the inter-ference between fluid and moving particles, the variation in friction coefficient of the particles with their velocity and so on. The results of calculation with the proposed formula show fairly good agreement with existing flume data.