Table 1.
Solution parameters in numerical simulation.
| Parameter type | Parameter | Values and settings |
|---|---|---|
| Gas parameter | Air density/(kg/m3) | 0.842 |
| CO density/(kg/m3) | 0.814 | |
| Temperature/K | 265.4 | |
| Atmospheric pressure/(Pa) | 64,078 | |
| Dynamic viscosity coefficient of air/(Pa⋅s) | 1.68 × 10−5 | |
| Blasting parameter values | Throwing length of blasting fume/(m) | 82 |
| Mass fraction of CO/(%) | 0.12 | |
| Mass concentration of CO/(kg/m3) | 0.000976 | |
| Solver settings | Time |
Steady (before blasting) Transient (after blasting) |
| Solver type | Pressure-based | |
| Turbulence model | RNG k–ε | |
| Velocity of inlet/(m/s) | 20 | |
| Turbulent intensity/(%) | 2.64 | |
| Hydraulic diameter/(m) | 1.8 | |
| Solution Methods | SIMPLEC | |
| Time step/(s) | 0.1 |