Erratum for “Critical Depth in Trapezoidal Channels”

an explicit equation for calculating critical depth in trapezoidal channels

trapezoidal channels are frequently used in irrigation networks and other free surface water conveyance systems. the computation of the critical flow depth is one of the primary importance in the design process. it is usually determined by using design charts of iteration techniques. however, researchers have recently proposed formulas that directly provide approximate solutions. this paper pre...

Critical stability number in rock lined channels

Explicit equations for critical depth in open channels with complex compound cross sections. A discussion

In open channel hydraulics, the notion of critical flow conditions and critical depth are not restricted to open channel flows with hydrostatic pressure distributions. This contribution shows an extension of the concept of critical flow conditions linked with the minimum specific energy, as introduced by Bakhmeteff [1] and extended by Liggett [9] and Chanson [5]. It demonstrated that the critic...

application of submerged vanes for sediment control at intakes from irrigation trapezoidal channels

construction of the intake structures to divert some portion of flow water from a main channel causes some variations of flow conditions at the intake entrance. these variations cause the reinforcement of the eddy flow and sedimentation in the bank of the intake. an effective measure to control the entry sediment is the use of submerged vanes. most of previous studies in this regards have been ...

Development of a computer model for long-throated flumes based on manning equation and different side slopes of trapezoidal channels

ABSTRACT- Measurement of irrigation water in agricultural areas is necessary, especially, in arid and semi-arid regions. Long-throated flumes have been used to measure irrigation water and are known to be inexpensive devices with high performances. In these structures, head-discharge tables are predicted theoretically with no need to calibrate. In this study, the model of LOTF ...