A rectangular channel 1.25m wide and 30m long with a flat bottom carries a flow of 0.5m3/s. The channel terminates in a free discharge. Plot a sketch of the water profile in the channel. Take n = 0.011. [10 Marks] b)  Find the depth for uniform flow in a trapezoidal channel side slopes 1 in 2, and bottom width 3m, when the flow rate is 6m3/s if So = 0.0006 and n is assumed to be 0.016. Compute the corresponding value of e. [10 Marks]

Q: Please answer fast.

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Q: Example 1 Determine the critical depth for water flowing at 10 m³/s in a trapezoidal channel with…

A: Flow rate (Q) = 10 m3/s Bottom width of channel (B) = 3m  Side slope (m:1) = 2:1  Determine the…

Q: 2.3 Considering the flow upstream of a sluice gate, the gate closes suddenly. The initial flow…

A: 2.3 Considering the flow upstream of a sluice gate, the gate closes suddenly. The initial flow…

Q: Last two digit 30

A: yn=1m R=yn=1m ( for wide rectangular channel)

Q: A rectangular channel 3 m width is conveying a water depth y1 = 1.55 m and velocity V1 = 1.83 m/s.…

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Q: Consider a concrete (n = 0.014) wide rectangular channel that discharges 2.7 m^3/s per unit width of…

A: Data given n = 0.014 Q = 2.7 m3/s / unit width S = 0.0002 Step rise, △z = 0.15 m Find:  Flow depth…

Q: A rectangular open channel, with a constant discharge of 32m3/s32, has a smooth expansion from (1)…

A: We have to explain what engineering techniques you could use in order for the flow to change regime…

Q: A short reach of a 2 m wide rectangular open channel has its bed level rising in the direction of…

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Q: In a 5 m wide rectangular channel, the velocity u distribution in the vertical direction y is given…

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Q: A triangular-shaped channel is designed to carry 1,500 liters per second of water on a slope of 3…

A: To Determine Depth of flow for a most efficient triangular Channel.

Q: Calculate the discharge through the channel and the floodway (shown in the Figure below) for steady…

A: S = 0.0004y = 8 ft or 2.44 m

Q: Consider a rectangular channel of width b=7.5 m, in which the hydraulic jump occurs and one of its…

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Q: A horizontal channel with rectangular cross-section has a width of B₁ = 3 m and depth of y₁ = 1.55…

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Q: Gradually Varied Question 4: Calculate the critical depth corresponding to a discharge of 8m³/s in a…

A: Discharge Q=8 m3/s Width b=4 m g=10 m/s2   It is needed to find the critical depth.

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.