DSMC Prediction of Particle Behavior in Gas-Particle Two-Phase Impinging Streams

Table 2

Conditions and parameters used in simulation.

Parameter	Value
Size of computational domain
Distance between nozzles, 𝑙	400 mm
Nozzle diameter, 𝑑	42 mm
Calculating parameter [19]
Restitution coefficient, 𝑒	0.9
Friction coefficient, 𝜉	0.2
Gas time step, Δ𝑡𝑔	1×10^−4 s
Particle spray angle^a	0°
Initial condition for inlet^b
Particle inlet velocity	20 m/s
Particle density	2450 kg/m^3
Particle average diameter	200 μm
Gas type	Air
Gas inlet velocity	25 m/s
Gas density	1.2 kg/m^3
Inlet particle mass flow rate; (single nozzle), 𝑊𝑝	0.01, 0.02, 0.027, 0.035, 0.04, 0.045, 0.05, 0.054, 0.06, 0.07, 0.08, 0.09, 0.1, 0.11, 0.12, 0.14, 0.16, 0.18, 0.2, 0.25, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1 kg/s
Initial condition for outlet
Pressure	101325 Pa

aTo reduce the effect of dispersion on the particle behavior, the particle spray angle is set to 0°.
^bThe gas-solid two-phase flow is fully developed at the outlet of nozzle.