1960•Journal of the Hydraulics DivisionRequires access

Hood Inlet for Closed Conduit Spillways

Fred William Blaisdell

Abstract

Inlet is formed by cutting circular pipe at angle and placing pipe so that crown projects beyond invert; capacity and performance of spillway for variations of hood inlet length, conduit slope, wall thickness, and approach conditions are discussed; effect of vortices on spillway capacity is shown and anti-vortex devices are developed; scour in vicinity of hood inlet is determined for various sizes of stone; equations for scour-hole dimensions.

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Key concepts: Electrical conduit, Inlet, Spillway, Geology, Vortex, Mechanics, Geotechnical engineering, Marine engineering