Consider the following assumptions as regards the field permeability test: 1. The flow is laminar and Darcy’s law is valid. 2. The flow is horizontal and uniform at all points in the vertical section. 3. The velocity of flow is proportional to the ‘tangent magnitude’ of the hydraulic gradient. Which of the above assumptions are correct?

1 and 2 only
1 and 3 only
2 and 3 only
1, 2 and 3

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : 1, 2 and 3

Assumptions for the field permeability test is given by:

1. The flow is laminar and darcy law is valid.

2. Soil mass is homogeneous & isotropic.

3. The well penetrates the entire thickness of the aquifer.

4. The flow is steady.

5. The coefficient of permeability (k) remains constant throughout.

6. The flow is horizontal and uniform at all points in the vertical section.

7. The velocity of flow is proportional to the ‘tangent magnitude’ of the hydraulic gradient.

8. The hydraulic gradient at any distance r from is assumed to be constant & equal to the slope of water table. The slope of water table should also be gradual.

4 views Answered 2022-09-04 04:29

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