Table 2 Soil Parameters.

From: Numerical study on small hole leakage and diffusion of hydrogen in buried pipelines

Soil Type

Soil Particle Size/mm

Porosity

Viscous Resistance Coefficient/m− 2

Inertial Resistance Coefficient/m− 1

A

0.05

0.43

2.45 × 1011

501,842

B

0.1

0.43

6.13 × 1010

250,921

C

0.01

0.43

6.13 × 1012

2,509,213

D

0.05

0.3

1.09 × 1012

1,814,815

E

0.05

0.55

7.30 × 1010

189,331

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