CIV E 530 - OPEN-CHANNEL HYDRAULICS
SPRING 2005
HOMEWORK No. 8
(50 percent) Using DIRECTSTEP in http://onlinecomp.sdsu.edu,
calculate the water surface profile for the case of a steep channel flowing into a milder
steep channel (S3 curve), with steep slope So= 0.04, and milder steep slope So= 0.01,
with the following conditions: Q = 20 m3/s; b = 2.50 m; z = 1; and n = 0.016.
Use CHANNEL
in http://onlinecomp.sdsu.edu to calculate the upstream flow depth.
Report the upstream normal depth, the downstream normal depth and the S3 curve channel length (to within 1 mm below normal depth) in m.
(50 percent) Using DIRECTSTEP in http://onlinecomp.sdsu.edu,
calculate the water surface profile for the case of a steep channel flowing into a milder
steep channel (S3 curve), with steep slope So= 0.025, and milder steep slope So= 0.0055,
with the following conditions: Q = 150 m3/s; b = 12 m; z = 0; and n = 0.013.
Use CHANNEL
in http://onlinecomp.sdsu.edu to calculate the upstream flow depth.
Report the upstream normal depth, the downstream normal depth and the S3 curve channel length (to within 1 mm below normal depth) in m.
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