Supercritical flow in rectangular c

Supercritical flow in rectangular channel can be explained
with the formation of hydraulic jump when high velocity
flow is subjected to sudden obstruction or undergoes sufficient bed friction.
Hydraulic jump(from supercritical flow)is one of application in dissipating energy
downstream of spillways, weir, etc.when the Froude number(Fr1)of the incoming stream is more than1. Stilling basin on downstream of spillway
(of a gravity or earthen or rock fill dam), not only dissipate additional energy but
controls high velocity to deviate from the channel bottom and also dissipate the part of kinetic energy of the flowing stream togetsafe flow in downstream channel which causes no erosion and scouring of bed.
Experimental studies on rectangular channel are significant as it generates the idea to
understand the behavior of flow in non-prismatic channels also;like abruptly expanding channel, sloping channel, trapezoidal channel.It helps in developing models, economical stilling basin design criteria for varying natural or artificial