The statement that a fluid velocity of flow through a porous medium is directly related to the hydraulic gradient is known as

This question was previously asked in

TANGEDCO AE ME 2015 Official Paper

- Young’s law
- Hooke’s law
- Stoke’s law
- Darcy’s law

Option 4 : Darcy’s law

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CT 1: Determinants and Matrices

2969

10 Questions
10 Marks
12 Mins

Darcy's law states that there is a linear relationship between flow velocity (v) and hydraulic gradient (i) for any given saturated soil under steady laminar flow conditions.

If the rate of flow is q (volume/time) through a cross-sectional area (A) of the soil mass, Darcy's Law can be expressed as:

v = q/A = k × i

Darcy’s law is valid for fine saturated sands only.

Where

k = permeability of the soil

i = Δh/L

Δh = difference in total heads

L = length of the soil mass

So, a fluid velocity of flow through a porous medium is directly related to the hydraulic gradient is known as **Darcy’s law.**

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