A Numerical Study on the Oscillating Flow Induced by an Acoustic Field around Coal Particles

Figure 10

Velocity vectors due to an acoustic field with SPL = 167 dB around a spherical particle of diameter 100 μm at different times during one cycle: (a) Re₀ = 0.0 (no steady flow), Re₁ = 15.75, and (50 Hz); (b) Re₀ = 0.0 (no steady flow), Re₁ = 15.75, and (5000 Hz). , , , , , , , and .

(a) Re₁ = 15.75 and ( = 50 Hz)

(b) Re₁ = 15.75 and St = 0.0144 (f = 5000 Hz)