Consider a rectangular channel with a variable width b andhorizontal channel bottom, a) Obtain the equation of water surfaceprofile (dy/dx) as function of Froude number and channel widthchange (db/dx) in a channel transition assuming that over a shortdistance ï„x, the energy losses can be neglected. b) Using theequation you have obtained, draw the water surface profile if flowis subcritical and if there is an enlargement in channel crosssection ï„b in downstream section (2) and show your results on thegraph of specific energy curve (E versus y curve)
