5) Water flows in a trapezoidal channel in which the bottom width is 5 meters and the side slopes are 1.5:1 (H:V). The channel linin has an estimated Manning n of 0.04 and the longitudinal slope of the channel is 1%. If the flow rate is 60 m/s and the depth of flow at a gaging station is 4 meters, classify the water surface profile, state whether the depth increases or decreases in the downstream direction. Answer:
5) Water flows in a trapezoidal channel in which the bottom width is 5 meters and the side slopes are 1.5:1 (H:V). The channel linin has an estimated Manning n of 0.04 and the longitudinal slope of the channel is 1%. If the flow rate is 60 m/s and the depth of flow at a gaging station is 4 meters, classify the water surface profile, state whether the depth increases or decreases in the downstream direction. Answer:
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Q5. This is for water resources Engineering. Please show steps and formulas as to how you arrived at posted answer, Thank you.
Transcribed Image Text:5) Water flows in a trapezoidal channel in which the bottom width is 5 meters
and the side slopes are 1.5:1 (H:V). The channel linin has an estimated
Manning n of 0.04 and the longitudinal slope of the channel is 1%. If the flow
rate is 60 m/s and the depth of flow at a gaging station is 4 meters, classify
the water surface profile, state whether the depth increases or decreases in the
downstream direction.
Answer:
5) yn= 2.25 m yc= 1.99 m y=4.0 m y> yn> ye M1 and flow depth increases in the downstream
direction.
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