Abstract: This paper describes the effect of bed surface structure on the rolling stability of a cohesionless spherical particle. The bed surface structure was investigated in terms of the vertical and horizontal orientation. The ...

Abstract: The development of armor layers in nonuniform sediments was investigated experimentally. Study objectives included extending the available data for high shear stresses and defining a criterion for the critical armoring ...

Abstract: The effect of bed-load movement on the friction factor of pipe flow and open-channel flow was studied experimentally. The measured results for flows without bed-load movement for both of these flows compares well with the ...

Abstract: This study investigates the mechanism and the characteristic parameters affecting local scour around a vertical pile caused by turbulent circular wall jets. There are two basic scouring mechanisms: the pile obstruction and ...