Numerical modelling of destruction of a drop of non-Newtonian fluid in a gas flow
1 Siberian Federal University, Krasnoyarsk, Russia
2 Kutateladze Institute of Thermophysics, Russian Academy of Sciences, Novosibirsk, Russia
* Corresponding author: firstname.lastname@example.org
Published online: 14 January 2019
The research presents the numerical modeling findings of the secondary breakup of droplets of coal water slurries containing petrochemicals (CWSP) droplet with the filter cake content of 50 % for different Weber number values. The modeling method of the secondary droplet breakup is based on the VOF method for interface resolution, LES model for describing turbulence, and the technology of adapted dynamic grids. This technology enables the grid to be automatically concentrated in the region of large solution gradients during the calculation. The implementation of such a highly detailed grid allowed resolving secondary droplets with the dimensions down to 15 μm. We established the droplet breakup modes depending on the Weber number ranging from 36 to 342. The structure of the stream behind droplets was studied in detail and the numerical method was tested. The results are in good agreement with the results of known experiments.
© The Authors, published by EDP Sciences, 2019
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