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Core - Civil Engineering

    Chapter 23

    Open Channel Flow

    23.1 : Energy Considerations in Open Channel Flow01:27

    23.1 : Energy Considerations in Open Channel Flow

    Open channel flow, where a fluid flows with a free surface exposed to the atmosphere, is primarily governed by gravitational and surface effects, ...

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    23.2 : Uniform Depth Channel Flow01:27

    23.2 : Uniform Depth Channel Flow

    Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform ...

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    23.3 : Uniform Depth Channel Flow: Problem Solving01:18

    23.3 : Uniform Depth Channel Flow: Problem Solving

    To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional ...

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    23.4 : Gradually Varying Flow01:29

    23.4 : Gradually Varying Flow

    Gradually varying flow (GVF) in open channels describes situations where water depth changes slowly along the channel due to factors like non-uniform bed ...

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    23.5 : Rapidly Varying Flow01:24

    23.5 : Rapidly Varying Flow

    Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative ...

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    23.6 : Hydraulic Jump01:29

    23.6 : Hydraulic Jump

    A hydraulic jump is a sudden rise in fluid depth in open channels, occurring when high-velocity (supercritical) flow transitions to low-velocity ...

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    23.7 : Hydraulic Jump: Problem Solving01:16

    23.7 : Hydraulic Jump: Problem Solving

    To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream ...

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    23.8 : Weir01:24

    23.8 : Weir

    A weir is a hydraulic structure designed to partially obstruct an open channel, enabling precise control and measurement of water flow. By forcing water ...

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    23.9 : Weir: Problem Solving01:26

    23.9 : Weir: Problem Solving

    Water flow in open channels is often measured using hydraulic structures such as weirs, which allow precise calculation of discharge. In a rectangular ...

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    23.10 : Underflow Gates01:30

    23.10 : Underflow Gates

    Underflow gates are vital for controlling water flow in irrigation canals. The three main types of underflow gates — vertical, radial, and drum gates ...

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    23.11 : Design Example: Design of an Irrigation Channel01:27

    23.11 : Design Example: Design of an Irrigation Channel

    Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature ...

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