Research Article
Study on the Radial and Axial Temperature Fields of Coal Roadway under Seasonal Fluctuation Boundary
Table 3
Thermal physical parameters of surrounding rock and air.
| | Medium | Density | Thermal Conductivity | Specific Heat Capacity | Thermal Diffusivity | Wave Amplitude | Cycle Time | Kinematic Viscosity | Initial Phase | | (Kg/m3) | W/(m•°C) | J/(Kg•°C) | (m2/s) | (°C) | (s) | (m2/s) | — — |
| | Surrounding rock | 2500 | 3.25 | 1000 | 1.30E-06 | — — | — — | — — | — — | | Air | 1.29 | 0.025 | 1010 | 1.92E-05 | 16 | 365×24×3600 | 1.48E-05 | 0 |
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