Figures (11)  Tables (1)

    • Figure 1. 

      Mesh generation and element quality.

    • Figure 2. 

      Streamline diagram of the non-step structure.

    • Figure 3. 

      Streamline diagram of the step structure.

    • Figure 4. 

      Velocity field distribution diagram.

    • Figure 5. 

      Vorticity diagram.

    • Figure 6. 

      Dust movement diagram of the non-step structure.

    • Figure 7. 

      Dust movement diagram of the step structure.

    • Figure 8. 

      Simulation diagram of droplet and dust movement.

    • Figure 9. 

      Experimental bench.

    • Figure 10. 

      Measuring point concentration and sampling photos.

    • Figure 11. 

      Dust suppression efficiency.

    • Boundary conditions Parameters
      Surface tension (N/m) 0.0729
      Dust density (kg/m3) 1,650
      Pressure (atm) 1
      Gas dynamic viscosity (Pa·s) 17.9 × 10−6
      Gas inlet pressure (Pa) 1, 1.5, 2
      Adiabatic index 1.4
      Droplet density (kg/m3) 1,000
      Gas constant (J/kg/K) 287
      Liquid dynamic viscosity (Pa·s) 0.001
      Initial velocity of fog droplets (m/s) 50

      Table 1. 

      Boundary conditions and parameter settings.