Question

- Predict the type and geometry of bedforms in a sand-bed
channel, d
_{35}=0.35 mm. and d_{65}=0.42 mm, sloping at S_{0}=0.001 with flow depth h= 1 m when the water temperature is 15C◦.

Answer #1

Predict the type and geometry of bedforms in a sand-bed
channel, d35=0.35 mm. and d65=0.42 mm,
sloping at S0=0.001 with flow depth h= 1 m when the
water temperature is 15C◦.

7. A) Find the depth of water flowing through a triangular
channel having a bed slope of 1 in 3500 and side slope of 1:1, when
it carries 1.2 m3/s. Take Manning’s Coefficient N = 0.014
B) For a most economical trapezoidal section of side slope 2h: 5V,
bed slope of 1 in 2000 and C = 50. Find the rate of flow if the
bottom width of the channel is 5 m.

A discharge of 4.25 m3 /s occurs within a trapezoidal channel
with a base width of 3m, 3:1 side slopes (i.e. Z = 3), a
longitudinal bed slope of 0.0009 m/m with a Manning’s roughness
coefficient of 0.025 (i.e. sand). State the normal flow depth (yn)
critical flow depth (yc) and the Froude Number of the flowing
water.

Examine the stability of the bed material rs= 2650 kg/m3, and
d50=1mm of a wide stream having slope of 0.001 and carrying a flow
at depth of 0.3 m when the water temperature is 15Cand angle of
repose = 32.

Examine the stability of the bed material rs= 2650 kg/m3, and
d50=1mm of a wide stream having slope of 0.001 and carrying a flow
at depth of 0.3 m when the water temperature is 15Cand angle of
repose = 32.

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4.00×10−4 (∘C)−1(∘C)−1 .
Enter your answer with four significant figures.
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