Based on problem $12-36.$ Efficient Channel shapes for uniform flow.

Compute uniform flow velocity $V$ and volume flowrate $Q$ for the channel sections show.

All sections are finished concrete $n=0\mathrm{.}012,$ with base width $b=2m,$ flow depth $y=1m,$ and

slope $S=0\mathrm{.}0015.$

A $-$ Rectangular

B $-$ Trapezoidal section with side slope $=60$

C$-$ Circular pipe section flowing $\frac{1}{2}-$full $(D=2m)$

D $-$ For each channel flow, classify the flow regime using both $R_e$ and $F_r$

A$.$

B$)$

C$)$