Abstract: Experimental results for flow in a 16.5% sloping channel over various kinds of submerged artificial large-scale roughness elements are presented. Eight different shapes of obstacles are tested, as follows: (1) standard ...

Abstract: Small drop structures employed in irrigation canals are often not ventilated. In this paper the importance of the residual pressure at the brink of a rectangular overfall is quantified by means of the 1‐D momentum equation. ...

Abstract: In urban drainage networks on steep terrain, drop manholes are often employed for energy dissipation and reduction of flow velocities. The hydraulic behavior of such circular manholes located between supercritical pipe ...

Abstract: An analytical solution for dispersion of a unit load introduced instantaneously in a two-layer flow is developed. The problem is formulated in terms of the 1-D dispersion equations in each layer, coupled through an interfacial ...

Abstract: The conditions for hydraulic jump formation at the confluence to a supercritical flow are examined theoretically. One‐dimensional analysis for rectangular channels leads to approximate criteria for the channels discharge ...

Abstract: Potentially high energy dissipation on stepped overflow spillways would imply a significant reduction of the size of downstream stilling basins. The amount of energy loss on such spillways under skimming‐flow conditions ...