STEADY FLOW IN OPEN CHANNELS 239
Is computed. Thus y. = 1.64 m; this unform flow establishes in the channel if its length is at least equal to the length of the surface profile (nonuniform flow ) that exists between the inlet depth, yc, and the uniform flow depth, yo.
The channel is of steep slope and the flow between these two depths corresponds to region 2 and hence and S2 profile develops whose length can L = 80m between the two depths; the calculations should commence at a depth slightly less than the critical pepth and terminate at a depth slightly higher than the normal (uniform) depth.
Example 8.26