Vladimir N. Khmelev, Andrey V. Shalunov, Roman N. Golykh This email address is being protected from spambots. You need JavaScript enabled to view it.1

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  

  • Download: PDF


Cite this article:

Khmelev, V.N., Shalunov, A.V. and Golykh, R.N. (2020). Physical Mechanisms and Theoretical Computation of Efficiency of Submicron Particles Agglomeration by Nonlinear Acoustic Influence. Aerosol Air Qual. Res. 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 presents a modelling approach to the study of the submicron particle agglomeration process under different conditions of ultrasonic exposure (in both the sinusoidal-wave mode and shock-wave (pulse) mode). For the modelling the non-linear effects occurring under the shock-wave action and influencing the particle coagulation rate are evaluated (pulse transferring, changing of effective cross-section collision by Brownian motion and shock-wave pressure drop, changing of particles concentration).  For the first time, the model simultaneously accounts for the non-linear effects. The research conducted has revealed the optimum duration of shock pulses of compression and depression. It has been demonstrated that the shock-wave mode allows up to 20 times rate of submicron particle coagulation as compared to the sinusoidal-wave with the same total energy of action.


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



Aerosol Air Qual. Res. 20 :-. https://doi.org/10.4209/aaqr.2020.02.0063  


Don't forget to share this article 

 

Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal, promotes submissions of high-quality research, and strives to be one of the leading aerosol and air quality open-access journals in the world.