Reconsider Prob. 13–129. By varying the flow depth-to-radius ratio y/R from 0.1 to 1.9 while holding the flow area constant and evaluating the flow rate, show that the best cross section for flow through a circular channel occurs when the channel is half-full. Tabulate and plot your results.

Data from Problem 13–129.

Consider a 1-m-internal-diameter water channel made of finished concrete (n = 0.012). The channel slope is 0.002. For a flow depth of 0.32 m at the center, determine the flow rate of water through the channel.

Transcribed Image Text:

R=0.5m 0.32 m