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Example (1)

Example (1). In a partially full channel having a triangular cross section the rate of discharge in which is a constant; is flow area, and is hydraulic radius. Determine the depth at which the discharge is maximum. For the triangular channel section shown, , and .

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Example (1)

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  1. Example (1) • In a partially full channel having a triangular cross section the rate of discharge in which is a constant; is flow area, and is hydraulic radius. Determine the depth at which the discharge is maximum. For the triangular channel section shown, , and

  2. Example (2): Derive the discharge per unit width of a broad crested weir across a rectangular channel?

  3. Example (3) • A rectangular channel expands smoothly from a width of 1.5 m to 3.0 m. Upstream of expansion, the depth of flow is 1.5 m and velocity of flow is 2 m/s. Estimate the depth of flow after the expansion.

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