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Dalelių judėjimo akustiniame lauke skaitinis modeliavimas / Numerical modeling of particles movements in acoustic field

Abstract

Numerical simulation of the acoustic agglomeration of micron-sized mono-dispersed aerosol particles is demonstrated in the article. The forces acting the moving particle into the moving fluid as well as the coordinates and velocities of the particles are described by the differential equations. Having calculated results it is concluded that the agglomeration time of the two identical particles decreases mainly due to the introduction of other particles into the multilayer system.


Santrauka


Straipsnyje parodyta, kaip diskrečiųjų elementų metodas (DEM) taikomas polidispersinių aerozolio dalelių akustinės aglomeracijos skaitiniam modeliavimui. Lygtimis aprašytos jėgos, veikiančios dalelę, judančią terpėje, ir pateiktos dalelės judėjimo greičio ir trajektorijos nustatymo lygtys. Gavus rezultatus nustatyta, kad dviejų vienodo skersmens izoliuotų dalelių aglomeracijos laikas iš esmės sumažėja dėl kitų dalelių įterpimo į daugiasluoksnę sistemą.


Reikšminiai žodžiai: akustinė aglomeracija, aerozolio dalelės, DEM.

Keyword : acoustic aglomeration, aerosol particles, DEM

Published in Issue
Jan 18, 2018
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