LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in General by (59.9k points)
closed by
The Darcy law relating to mean velocity and hydraulic gradient in a porous medium is applicable to:
1. laminar regime flow only
2. transition regime flow only
3.  turbulent regime flow only
4. flow of all fluids in all regimes of flow 

1 Answer

0 votes
by (103k points)
selected by
Best answer
Correct Answer - Option 1 : laminar regime flow only


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.


k = permeability of the soil, i = Δh/L

Δh = difference in total heads, L = length of the soil mass

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.