Calculus tells us that the most efficient wall angle for aV-shaped channel (Fig. ) is θ = 45°. It yields thehighest normal flow rate for a given area. But is this a sharpor a flat maximum? For a flow area of 1 m2 and an unfinished-concrete channel with a slope of 0.004, plot the normalflow rate Q, in m3/s, versus angle for the range 30° ≤ θ ≤ 60° and comment.
Calculus tells us that the most efficient wall angle for aV-shaped channel (Fig. ) is θ = 45°. It yields thehighest normal flow rate for a given area. But is this a sharpor a flat maximum? For a flow area of 1 m2 and an unfinished-concrete channel with a slope of 0.004, plot the normalflow rate Q, in m3/s, versus angle for the range 30° ≤ θ ≤ 60° and comment.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Calculus tells us that the most efficient wall angle for a
V-shaped channel (Fig. ) is θ = 45°. It yields the
highest normal flow rate for a given area. But is this a sharp
or a flat maximum? For a flow area of 1 m2 and an unfinished-
concrete channel with a slope of 0.004, plot the normal
flow rate Q, in m3/s, versus angle for the range 30° ≤
θ ≤ 60° and comment.
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