Water Resource Engineering: Open Channel Flow For a triangular channel, the top width, T is given as: T = 2zy where z is the horizontal portion of the side slope of the channel and y is the channel depth. The area of a triangular channel, A is given as: A = zy2 Given the above information and using the equation: 1 = TQ2/gA3 Solve for the critical depth, yc and the minimum specific energy. Note: remember the discharge, Q = qT

Q: Problem (1) Find the quantity of discharge q in meter cube per second per meter width for the…

A: To Determine Quantity of discharge, q in m³/s/m

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A: What is the critical depth in a rectangular channel and calculate minimum specific energy?

Q: EXAMPLE: For the shown system below, the following is given: L = 300 m e = 0.2 mm v(Nu)= 1 x 10-6 m2…

A: Given, L= 300 m D= 100 mm e=0.2 mm H= 60 m ν=1×10-6 m2/sec Turbulent flow

Q: 2. Water flows from left to the right reservoir at a rate of 16 ft3/s (cfs). The head loss can be…

A: Given Data: Flowrate (Q) = 16 ft3/s L1 = 200 ft L2 = 300 ft D1 = 1.128 ft D2 = 1.596 ft A1 =  1 ft2…

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A: Consider the following diagram:

Q: Question: Open channel test is performed and according to the following; (t=14.35 s)(1kg = 0.01m3)…

A: t=1 kg =y=B=To find- a) Flow calculationb) Energy from the flow ratec) Energy by point velocities

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Q: 12. For the Dam shown in the figure a) Draw the flow net in the soil under the dam b) Calculate q…

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Q: 20 cm=y 5 kg 8 cm=B Feeding tank

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Q: In the model test of a spillway the discharge and velocity of flow over the model were 2 m/s and 1.5…

A: given data Vm=1.5m/s Qm=2m3/s LpLm=36 Lr=136

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.