#623 Water flows in a rectangular flume 1.5 m
Water flows in a rectangular flume 1.5 m - Mechanical Engineering
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Free Chegg Question
Water flows in a rectangular flume 1.5 m wide made of unplaned timber (n = 0.013). Find the necessary channel slope if the water flows uniformly at a depth of 0.6 m and at 4.5 m/s.
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Free Chegg Answer
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Step 1 of 5
Given data:
Width of the rectangular flume
Manning’s coefficient
Velocity in the rectangular flume
Depth of flow in the rectangular flume
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Step 2 of 5
Channel cross section
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Step 3 of 5
Manning’s equation for velocity in SI units
Where
Hydraulic radius
Area of the channel cross section
Wetted perimeter
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Step 4 of 5
Area of the channel cross section
Wetted perimeter for the channel
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Step 5 of 5
Hydraulic radius
Thus, velocity in the channel
Therefore the bed slope of the rectangular flume is
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Area of the channel cross section
Hydraulic radius
Wetted perimeter
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