Table 1.
Parameters in Biot’s model.
| Parameter | Unit | Definition | Note | |
|---|---|---|---|---|
| a | m | Pore size diameter | ||
| B a | Pa | (Air) | Bulk modulus | |
| B f | Pa | (Fluid) |
|
|
| B g | Pa | (Grain) | ||
| B sk | Pa | (Skeleton) |
|
|
| B w | Pa | (Water) | ||
| E | Pa | Young’s modulus | ||
| f | s− 1 | Resonant frequency | ||
| g | m/s2 | Gravitational acceleration | ||
| G sk | Pa | Shear modulus |
|
|
| k | m/s | Permeability | ||
| K | m2 | Absolute hydraulic conductivity |
|
|
| n | – | Porosity | ||
| S | – | Degree of saturation | ||
| T | – | Visco-dynamic operator |
 ,  and  are Bessel functions |
|
| α | – | Tortuosity |
|
|
| ρ g | kg/m3 | (Grain) | Mass density | |
| ρ w | kg/m3 | (Water) | ||
| ρ f | kg/m3 | (Fluid) |
|
|
| ρ mix | kg/m3 | (Mixture) |
|
|
| η | Pa·s | Dynamic viscosity | ||
| ζ | – | Dimensionless factor |
|
|
| ν | – | Poisson’s ratio | ||
| ω | s− 1 | Angular frequency |
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|