4 research outputs found
Incipient sediment motion at high slopes in uniform flow condition,
No full textnone2This paper reviews the problem of the incipient motion of cohesionless particles in a
high sloping water stream. A theoretical analysis of the equilibrium of a gravel particle is
developed by a deterministic approach with the introduction of the relative degree of
exposure of the particle itself to the stream flow. The parameter, relative degree of
exposure, relates the positioning of a particle with the upstream one. The problem of
velocity distribution and the definition of drag coefficient is also revised to better account
for low submergence. The results of the theory are compared with a series of ad hoc
experiments performed by C. Gregoretti.mixedARMANINI A; GREGORETTI C.Armanini, A; Gregoretti, Carl
