Given the water flow rate (Q), catchment area, and river length. Then, how do we find...
Given the water flow rate (Q), catchment area, and river length.
Then, how do we find the dam height (H)?
Homework Answers
It doesn't depend only on above-said factors but many, say silt factor, expected annual run-off from the catchment area (A). Generally, based on the cost per unit volume of water, the most economic height is calculated.
If you ignore all other factors, then first calculate the annual runoff (R) from the catchment area for a return period of 10 years. Note that the discharge Q (in m3 ) shall never be more that of the annual runoff (R).
Now the maximum height of the wall,
where L= Length of the dam wall
T = Throwback (m) , approximately in a straight line from the wall.
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Given the water flow rate (Q), catchment area, and river
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