Question

a) Sketch the specific energy curves for the following open channel flows:

· A hydraulic jump formed in a rectangular open channel

· Flow through a channel width constriction, where the depths remain subcritical

throughout

· Flow through a sluice gate, where the gate opening is less than the flow’s critical

depth.

· Flow through a combined channel width constriction together with an upward

step, where the depth remains subcritical throughout.

b) Define and explain the following terms

· Critical depth

· The origin or description of the two components of the specific energy for

rectangular channels

· Alternate depths· The origin or description of the two components of the momentum function for rectangular channels

Answer 1