Research Article
A Numerical Study on the Oscillating Flow Induced by an Acoustic Field around Coal Particles
Figure 11
Axial pressure gradient and shear stress on the surface during the half cycle ( = 0.0~0.5) for frequency of 50 Hz () and 5000 Hz (): Re0 = 0.0 (no steady flow), Re1 = 15.75 (SPL = 167 dB).
| (a) Axial pressure gradient at 50 Hz |
| (b) Axial pressure gradient at 5000 Hz |
| (c) Wall shear stress at 50 Hz |
| (d) Wall shear stress at 5000 Hz |