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For flow through soils, the characteristic length in Reynolds number is taken as ________

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in Geotechnical Engineering I by (102k points)
For flow through soils, the characteristic length in Reynolds number is taken as ________

(a) uniformity coefficient

(b) coefficient of curvature

(c) coefficient of percolation

(d) average diameter of the particles

This question was addressed to me by my school teacher while I was bunking the class.

The query is from Permeability in portion Permeability of Geotechnical Engineering I

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Right choice is (b) coefficient of curvature

For explanation I would say: The validity if the Darcy’s law is expressed by the Reynolds number in the form,

\(\frac{vDaρw}{ηg} ≤ 1\)

Where, Da is the average diameter of the particles.

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