Vladimir N. Khmelev, Andrey V. Shalunov, Roman N. Golykh This email address is being protected from spambots. You need JavaScript enabled to view it.

Biysk Technological Institute (branch) of Altai State Technical University named after I.I. Polzunov, Biysk, Russian Federation


Received: February 15, 2020
Revised: July 30, 2020
Accepted: August 24, 2020

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.4209/aaqr.2020.02.0063  

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Cite this article:

Khmelev, V.N., Shalunov, A.V., Golykh, R.N. (2021). Physical Mechanisms and Theoretical Computation of Efficiency of Submicron Particles Agglomeration by Nonlinear Acoustic Influence. Aerosol Air Qual. Res. 21, 200063. https://doi.org/10.4209/aaqr.2020.02.0063


HIGHLIGHTS

  • New method of aerosol particles agglomeration.
  • In first time the physical mechanisms of agglomeration by shock-waves were evaluated.
  • New theoretical of submicron particles agglomeration by shock-waves.
  • Theoretically computed optimum modes of submicron particles agglomeration by shockwaves.
 

ABSTRACT


This study models the agglomeration of submicron particles when they are exposed to different types of ultrasonic waves, viz., sinusoidal waves and shock waves (pulses). The non-linear effects of the shock waves (the transfer of heat, drop in pressure, change in the particles’ collisional cross-section due to Brownian motion, and difference in particle concentration), which influence the particle coagulation rate, are simulated for the first time and evaluated. The results reveal the optimum duration for compression and depression shock-wave pulses. Furthermore, given the same total amount of ultrasonic energy, the submicron particles coagulate 20 times more quickly with shock waves than sinusoidal waves.


Keywords: Ultrasound, Shock wave, Coagulation, Submicron particles, Smoluchowski equation



Aerosol Air Qual. Res. 21 :200063 -. https://doi.org/10.4209/aaqr.2020.02.0063  


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