Open Channel Transitions: Rational Method of Design

Abstract

Existing methods for the design of an open channel transition between a rectangular flume and a trapezoidal channel for subcritical flow have been critically examined. Arising out of some fundamental considerations, a suggestion has been offered to make Hinds transition design a direct method. The problem of flow through open channel transitions has been viewed basically from the fluid mechanics point of view and suitable functions for the boundaries of transition (namely bed width, bed elevation, and side slope) have been identified partly analytically and partly experimentally. Based on these results, a new and rational method of design is suggested.