Aerosol deposition in acoustically induced turbulent flow

Experimental results are reported for the wall deposition of monodisperse aerosols with diameters ranging from 0.5 to 5.7 μm in an acoustically induced turbulent flow. In a set of experiments, both acoustic intensity and frequency are independently varied in the range of 161-168 dB and 500-1600 Hz under the traveling-wave condition. The deposition rate in the present work has been modified to account for acoustical effects. Furthermore, the advective contribution due to the turbulent velocity gradient is also included in the description of the mass transfer of aerosols. Based on the assumption of perfect sticking conditions (no particle rebound and or re-entrainment), theory and experiment are in fairly good agreement.