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Table 4 permeability parameters of water and sand under different sand concentration

From: Influence of particle size on non-Darcy seepage of water and sediment in fractured rock

Concentration of sediment (kg/m3)

Particles size

\(I_{e}\) \(I_{e} \;\left( {{\text{m}}_{{}}^{n + 2} \cdot {\text{s}}_{{}}^{2 - n} /{\text{kg}}} \right)\)

\(\beta \;({\text{m}}_{{}}^{ - 1} )\)

20

0.04

1.57E−06

5.67E+06

0.075

7.62E−07

1.46E+07

0.100

4.34E−07

2.64E+07

0.151

1.71E−07

6.48E+07

40

0.04

8.34E−07

2.14E+06

0.075

5.53E−07

1.03E+07

0.100

3.54E−07

1.75E+07

0.151

1.73E−07

2.93E+07

60

0.04

6.82E−07

3.04E+06

0.075

4.41E−07

1.10E+07

0.100

2.60E−07

2.54E+07

0.151

6.31E−08

9.33E+07

80

0.04

6.76E−07

1.05E+06

0.075

6.76E−07

4.77E+07

0.100

2.20E−07

9.90E+07

0.151

1.28E−07

2.28E+08