Characteristics of Self‐Formed Straight Channels

Abstract

Laboratory experiments were conducted to study various aspects of the mechanics of self‐formed, stable, straight alluvial channels in the presence of bed‐load transport. The assumptions used for the formulation of the turbulent diffusion model of Parker (1978) were examined first. Velocity measurements indicated that the logarithmic law for rough walls is a valid approximation to the velocity profile, along normals to the boundary for the whole channel depth. The equivalent sand‐grain roughness,