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
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.
Revised:
July 30, 2020
Accepted:
August 24, 2020
Download Citation:
||https://doi.org/10.4209/aaqr.2020.02.0063
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
Cite this article:
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.HIGHLIGHTS
ABSTRACT
Keywords:
Ultrasound; Shock wave; Coagulation, Submicron particles; Smoluchowski equation.
Aerosol Air Qual. Res. 20 :-. https://doi.org/10.4209/aaqr.2020.02.0063
