Research Article
Influence of Effective Pressure on Percolation Rate of Coal
Table 5
The material parameters of the model.
| | Parameter name | Numerical value |
| | Modulus of elasticity | 6.78 108 MPa | | Poisson’s ratio | 0.35 | | Original porosity | 0.0828 | | Initial percolation rate | 8.0 10−15m2 | | Gas density | 0.714 kg/m3 | | Gas dynamic viscosity coefficient | 1.08 10−5 | | Thermal conductivity | 0.443 | | Specific heat | 4.35 | | Coefficient of thermal expansion | 1.2 10−41/K | | Gas compression ratio | 4 10−101/Pa | | Gas specific heat | 1.4 |
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