The application of Darcy’s Law is limited by the condition that flows through the porous medium must be -

Correct option is A

· Darcy’s Law:
· Darcy's Law describes the flow of a fluid through a porous medium and states that the flow rate is proportional to the hydraulic gradient.
· It is mathematically expressed as: Q=K⋅A⋅ΔH/L​, Where:
· Q: Discharge.
· K: Hydraulic conductivity.
· A: Cross-sectional area.
· ΔH/L: Hydraulic gradient.
· Limitation:
· Darcy’s Law is applicable only for laminar flow, where the flow is smooth and orderly, with Reynolds number (Re) less than 10 in porous media.
· For turbulent or intermediate flows, Darcy's Law does not hold true.