Abstract
A model of the vibrated fluidized layer was investigated, in which the discrete element method is used. A thin layer of silica gel particles (a monolayer) was considered. The average particle diameter is 4 mm. Numerical calculations of the timeaverage distribution of the volume fraction of particles in the layer during the vibrated fluidization are performed. The results were obtained at different values of amplitude and frequency of vibrations. The free open source code LIGGGHTS was used for the calculations, in which the discrete element method was implemented. The results of comparison of numerical calculations with experimental data are presented. The values of the particle volume fraction in the lower and upper parts of the layer are underestimated in comparison with the experimental data, and in the middle part of the layer they are overestimated. Single particles are observed in the upper part of the layer. In all cases, the area of the region bounded by the calculated curve roughly coincides with the area of the region bounded by the experimental curve. It indicates a qualitative coincidence of the results. The results of calculations of the average value of the height of the vibrated fluidized layer with experimental data were compared. A satisfactory agreement between the results of the calculations and the experimental data was obtained.
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