Question

Note: Values of conversions and constants, such as viscosity, are available in your book (inside cover). Roughness heights, e, for certain common pipe materials can be found in the textbook. Values not available in the book will be specified in the problem statement. Any required plots and tables must be completed neatly on a computer with appropriate scale for full credit. Sample calculations for tables and plots must be provided.  

Problem 4 (10 Points) Water flows in a channel whose bottom slope is 0.007 and whose cross section is as shown below. The dimensions and the Manning coefficients for the surfaces of different subsections are also given in the figure. Determine the flow rate (cubic meters per second) through the channel and also the effective Manning coefficient for the channel if the surface were entirely uniform (composed entirely of one material) Page 1 6 m 10 m 2 2 m Concrete channel 0.014 Light brush n2 0.050 1.5 m 2 m

Answer 1

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pexi melc o the J, bungh enam 12 m The otal uted peximete 21m 2om 12 m 39m 91m

The lotal blw sale huwush Ae ん Haleんwwex 1m'le (e) (2n)/310,oor)んヤ 1nms)s (20w na ) ().wam y's 0,01 너 0 050 0.00午 2. 0.200 4.04 어 3