Table 2 Calculation model parameters of micro-motion process.
From: A study on movement characteristics and distribution law of dust particles in open-pit coal mine
Boundary conditions | Parameters setting |
|---|---|
Turbulence model | k-epsilon Standard |
Gravitational acceleration /(m/s2) | 9.8 |
Inlet boundary | Velocity-inlet |
Outlet boundary | outlet-vent |
Pressure–velocity coupling | SIMPLE |
Discrete phase model | Open |
Resistance characteristics | Spherical particles |
Jet source type | Surface sources |
Density of coal dust (kg/m3) | 1500 |
Discrete term boundary | Trap |
wind speed | 4.6Â m/s |
wind direction | North-west |
