Darcy's law for flow through porous media states that flow velocity v is:
Choose the correct answer
Proportional to hydraulic gradient squared
Proportional to hydraulic gradient (v = ki)
Independent of hydraulic gradient
Proportional to the square root of hydraulic gradient
Correct Answer
B. Proportional to hydraulic gradient (v = ki)
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Darcy's law: v = k × i, where v = seepage velocity (superficial/discharge velocity), k = coefficient of permeability, i = hydraulic gradient = h/L. Valid for laminar flow (Reynolds number < 1).
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