Table 5 Density parameters under particle size (1 μm, 2.5 μm, 5 μm and 7.5 μm).
From: Numerical investigation of coal dust migration in sealed tunneling environments: A CFD-based study
\(\:{d}_{p}\) (10−6m) | \(\:{u}_{s}\) (10−3m/s) | \(\:{n}_{p}\) | \(\:{n}_{p}^{{\prime\:}}\) (107part./m³) | \(\:\varnothing\:\) (10−8) | \(\:\varDelta\:\rho\:\) (10−3kg/m³) |
|---|---|---|---|---|---|
1 | 0.053 | 93,284 | 7.774 | 0.004 | 0.0003 |
2.5 | 0.330 | 106,922 | 8.910 | 0.073 | 0.0336 |
5 | 1.319 | 108,722 | 9.060 | 0.593 | 1.0948 |
7.5 | 2.967 | 116,486 | 9.707 | 2.144 | 8.9070 |
