https://doi.org/10.1140/epjp/s13360-022-02781-w
Regular Article
Numerical simulation on the cohesive course of water fog and dust particles in the ultrasonic field by DEM combination
1
Faculty of Mining Engineering, Kim Chaek University of Technology, P.O. Box: 60, Kyogu, 999093, Pyongyang, Democratic People’s Republic of Korea
2
School of Science and Engineering, Kim Chaek University of Technology, 999093, Pyongyang, Democratic People’s Republic of Korea
Received:
21
December
2021
Accepted:
28
April
2022
Published online:
4
June
2022
This paper deals with numerical simulation combined with discrete element method (DEM) on the cohesion between dusts and water fogs in the ultrasonic field and the application of acoustic energy to assist fluid/solid separation processes in gas and liquid suspensions, and presents some theoretical and experimental results in industrial applications. The main objective of the paper is to study changes of particle size and number density on the cohesion course; however, droplet measurement is complicated; as development of an interpretative program, measurement of droplet size through the numerical simulation is attempted. The study on the cohesion character contains the changes of particle size and number density according to the time. It can be found from the simulation results that cohesion course of particles is performed periodically of 3.4 s and it is accelerated under the low frequency and high power. These results are proved through the comparison with experiment.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
